Top 10 Most Intelligent Sonic the Hedgehog Characters

There are many Sonic the Hedgehog characters who are intelligent. But which Sonic character has the greatest knowledge by far?
The Top Ten
1 Miles "Tails" Prower Miles Prower, more commonly known by his nickname Tails, is a fictional character in Sega's Sonic the Hedgehog series. He is a significant main character after the title character Sonic, who is also his best friend.

If your a fan of Tails and Sonic Pals you maybe happy to know that I've changed my mind about them, I don't view them as being terrible anymore.
In fact, I'm actually starting to respect them a lot more despite their flaws which I still can't stand to this day, but I'm quite literally starting to warm up to them despite my opinions and views on the topic of Sonic.
Yeah, I still hate the idea of Tails being a simp and a playa, but I've come to my senses and I'm going to accept whatever they give us as fanon.
Tails and Egg-man are coin toss geniuses and that's how I want them to stay.
- Adam C. Evers

I believe that Tails might actually be smarter than Albert Einstein, Tony Stark and Rick from Rick and Morty combined into one character; Miles "Tails" Prower would clearly reach levels of IQ points that Egg-man can only dream of reaching, Tails is a truly the god of geniuses.
Sonic and his other friends would clearly be screwed without him because no one can beat Miles "Tails" Prower when it comes to brains.
Egg-man comes pretty close to outsmarting him, but he barely comes close to outfoxing him.
Tails is truly the smartest fox in the universe, Egg-man is the smartest man on the planet.

Miles "Tails" Prower is the fox that outfoxes everybody, the coin toss genius alongside Eggman.
Tails truly is a powerful enemy you don't want to make.
In fact, you should never want to be his enemy since doing so could put you in a lot of hot water if he were to turn evil.
Heck, if Tails was Infinite wouldn't he destroy Westside Island after the way they've treated him in the past.
Wouldn't he end their lives with the phantom ruby or at least have them face a fate worse than death after remember everything they put him through as a fox cub.
Believe me, Tails is way too smart to handle.
Sonic would fear the day he turns evil in more ways than one.
- Adam C. Evers
Look at Tails and Eggman's in gamd logos and you should see what I mean my coin toss geniuses.

Tails truly deserves his spot on this list for being the greatest mind that the series has to offer, Tails is truly a 100% OP genius.
He is the Anakin to Sonic's Obi Wan.
Tails is truly the greatest partner Sonic could ever ask for and no, shipping is out of the question here, this is a list for masterminds.
Also I hate the idea of Tails being a simp, I always have.

2 Dr. Eggman Robotnik Doctor Ivo "Eggman" Robotnik is a fictional video game character and the main antagonist of the Sonic the Hedgehog series, created by Sega.

Tails has proven himself to be the smartest character in the main canon as well as the fanon, but Egg-man still has the brains to call himself a genius despite the fact that his mostly calling himself a genius since he views himself as the smartest man alive, the greatest mind in existence.
Tails still takes the number one spot low, just admit it, he deserves it.

Tails and Egg-man are quite literally coin toss geniuses, just check their logos.
Tails has a gear with his trademark tails and Egg-man has his face which sometimes has a gear on it.
- Adam C. Evers

Doctor Ivo Julian "Eggman" Robotnik is just as smart as Tails - heck, both of them should have gotten the number one spot with Tails taking the number two spot and Eggman taking the number three spot when their own their own; really the three top spots could just be them alone, just point an Eggman and Tails fusion at number one and call it a day.
Three spots would stick to them as characters and them alone while Eggman on the other hand is a villain that can walk the walk and talk the talk.
Eggman is truly a genius...

Doctor Ivo Julian "Egg-man" Robotnik truly is a genius with a dangerously high IQ but, he lacks what Tails has... friends and allies, people that truly care about him; people that see him for who he truly is... too bad Tails and Sonic Pals, Emerald Masters, Gotta Go Fast and Charmy Bee screwed this up low, Tails is a genius but they stupidity made him out to be what his not - an idiot, they are the idiots not him.
Tails and Egg-man are both dangerous minded geniuses.
They really need to stop being stupid and write what needs to be written...

3 Wave the Swallow

Fan projects are always wrong in one way or another but, Tails and Sonic Pals can't seem to get any of it right and I can pretty much say the same thing about Emerald Masters, Gotta Go Fast and Charmy Bee seeing that their just as dumb as each other and I'm unsure as to why the nitwits have a ton of subscribers when their videos such so much.
Wave is smart yes but, she falls flat while compared to Tails, Eggman, Cosmo, Fang, Dark Oak, Mimic and maybe Shadow; yeah, Shadow pretty much does what he wants I guess.

Seriously, you can tell that people love Taiream by the number of videos and drawings that exist on the topic and believe me, Tails and Cream are 100% a much better couple than Charmy and Cream, Chaream is literally nothing while compared to Taiream.
I bring this up because we now talking about Wave the swallow, a character that admitted that Egg-man is smarter than he while denying the fact that Tails has the same IQ, but higher.
- Adam C. Evers

Number four genius, I actually like the idea of Tails being the most dangerous mind on Mobius.
Wave is smart but, Tails is dangerous.
The little guy is growing as a dangerous mastermind which could spell danger if he had his own dark form, Tails would command all of the powers of the chaos force and would pretty much stand as a chaos devouring vampire.
Tails's dark form would be a chaos fueled vampire that feeds off of the chaos powers of others, somebody write that as a Sonic themed vampire story.
Now onto Wave, the genius thief of the hour/skies.
Wave is a genius when it comes to hoverboards and gadgets, Tails just takes the cake and eats it too.

Wave the swallow is pretty much an enemy to Tails due to the two of them being smart despite the fact that Tails really should have heard her put the bomb on Sonic's board seeing that foxes can hear a clock tick from 40 miles away, I might need to look the info up again but I'm pretty sure that every word of that is true and humans can barely hear things that well.

4 Shadow the Hedgehog Shadow the Hedgehog is a character who appears in the Sonic the Hedgehog series released by Sega. He is an artificially created black and red hedgehog whose hover shoes propel him at extreme speeds that rival those of Sonic.

Shadow is smart yes but, he still isn't as smart as Tails.
Besides, Shadow has done some of the dumbest things possible in the series and has actually been pretty dumb in the main canon.
He and Rouge tried to kill Cosmo in the Sonic X which would have resulted in Dark Oak winning when he started draining them of their life force if they would have succeeded in killing her.
Believe me when I say that Shadow maybe the ultimate life form but, he can be just as foolish and stupid as Charmy.
However, I do see a bit of myself in him because if I want to do something I do.

Huh, Shadow doesn't have a very high IQ since he barely shows his smarter side, but yes; he can be smart, just not as smart as the top tier geniuses.

Shadow doesn't belong on this list due to reason, but he still deserves to be listed as one of the most powerful characters in the series alongside Tails who pretty much has a link to the chaos force, Emerald Masters and Tails and Sonic Pals screwed this up while writing.
Actually, I don't think they write scripts at all.

Shadow is a smart guy despite lacking the brains that Tails has in spades and the knowledge that Egg-man holds.
Shadow is just, him.
Shadow is the ultimate life form, a hedgehog of great power despite not being linking to the chaos force like Tails.
Shadow has power yes, but Tails has all of that and more, way more.

5 Sonic the Hedgehog Sonic the Hedgehog, trademarked Sonic The Hedgehog, is the title character and protagonist of the Sonic the Hedgehog series released by SEGA, as well as numerous spin-off comics, five animated shows, and an animated OVA.

Gotta go fast sonic is a nice guy and while sonic and Amy squad sonic is kind of a bit of a jerk he's still a great guy overall. He's smarter than shadow because he has better memory and he's street smart and can take care of himself while shadow needed help and encouragement from rouge to get back to normal.

In many spin-offs, especially SatAM and Archie Comics, Sonic is shown to have a diverse vocabulary: although he often uses slang, he also shows knowledge of basic physics and foreign languages (such as Spanish).

He is quite the wordsmith and his well-roundedness truly shows. His sense of humor-- especially in comic spin-offs-- also shows his intellect.

Additionally, he is sometimes shown to think deeply about himself and his place in his world. He is often the first to say something when times are hard and when everyone needs encouragement or a sweet send-off to a lost friend.

Tails and Sonic Pals, Emerald Masters, Gotta Go Fast, Charmy Bee and Sonic and Amy Squad have gotten his character completely wrong seeing that Fleet-way Sonic is the true jerk, not Sonic himself.
UwU Sonic's friendship with his Tails barely exists with the same thing being said for the Sonic from Sonic and Amy Squad because his a bully that steals money that his friends are saving for the channel to buy chilidogs, also he treats Tails poorly and pretty much makes me question why Tails doesn't just join Egg-man just despite him.
Canon Sonic is alright low; I really like him but, the others need to rethink their lives and actions because they've been more villainous than heroic lately.

Intelligence is not simply defined by one's IQ alone, but by their ability to overcome obstacles, to persevere. You can be as smart as Albert Einstein, but if you're so arrogant that you do not plan for flaws, stamp your foot into the ground with rage, then you're not intelligent at all. Sonic does not prepare for things to happen, but he goes with the flow and prevails in the end despite the likelihood of success. He does not get angry, he continues. That, is true genius, no matter how high your IQ is.

6 Rouge the Bat

Number five genius, the smartest gem thief around...?
How is she able to steal from Egg-man?
I can understand Knuckles but Egg-man, how is Egg-man's fortress not strong enough to keep his treasures safe...?
Heck, Tails was able to hang onto all of the emeralds he had accept for the ones Egg-man stole but, the one in his plane went un-stolen through the whole story.
Also why does she have the same abilities as Tails while Cream does not, it doesn't make any sense.
Did she steal them or build them?
Tails created those gadgets in my books so, she stole them.
Rouge isn't really a genius, she is nothing more than a treasure hunting thief.
Besides Tails was able to create a fake chaos emerald that worked like the real deal so... why not have Tails create fake emeralds and allow Rouge to take the real ones, the emeralds are safe with her and the world is safe boom everybody is happy but Egg-man.

Rouge shouldn't be as smart as Tails and Eggman, but for some strange reason she is.
She should have trouble robbing them, but she doesn't.
I can understand Eggman, but Tails the smartest Mobian fox alive, no dice.
Tails should know her by this point and if he truly was a genius as we all know him to be breaking into his treasury would be harder than trying to open a picklejar, after trying to find a needle in a haystack.
- Adam C. Evers

Tails and Sonic Pals made a huge mistake with this character when they wrote her off as having a taste for rings and jewels, I'm guess their version of Rouge is into VORE and other cringey fetishes like that.
Their version of Rouge is dumb, SEGA version is actually smart.

She shouldn't be on the same level as Tails, Egg-man, Nicole, Wave and Cosmo, but she would be on the same level as Nack/Fang.
- Adam C. Evers

7 Tikal the Echidna

Tikal is nowhere the same level as Tails and Eggman but, she still knows the chaos emeralds better than anybody.
Tails might still have her beat low.

This was between her and Cream, I chose her over the bunny I despise so much because of what the fanon as done to her over the years.
Anyways Tikal isn't as smart as Tails but, like Amy I can picture her as a cannibal.

Tikal is shown to have a wide knowledge of Chaos energy and even spoke wisely about avoiding greed.

Tikal is wise yes but smart, kinda; she isn't as smart as Tails and despite his flaws Tails is 100% smarter than her.

8 Blaze the Cat

If Blaze was given the choice out of working with Tails for five days or working with Marine for life, which would she choose?
Tails or Marine?
My moneys on Tails hands down, but yes, that would mean that Sonic would have to spend five days with Marine as his sidekick.
Would Blaze call Tails the best helper ever or would she be begging for Marine to comeback?

I really hated the way Blaze was written on Tails and Sonic Pals's YouTube channel, they really could have done something better with her character, but they didn't, canon Blaze is way smarter than their version, enough said.
Besides, their using way too many ships.
They should have started with Taismo and Chaream while focusing on Sonamy before moving onto Taiream after a Metarex Cosmo arc.

I'm really impressed with the way SEGA has written her in the main canon while compared to Tails and Sonic Pals's channel where she comes off as being a complete clone of Amy at times.
Being angry for the sake of being angry which is lame because we already have Shadow and Amy filling that role alongside Cream and Cheese which was just as dumb as making Tails a parody of Quagmire.
I'm not going to lie, Team UwU sucks.
- Adam C. Evers

UwU Blaze is as dumb as a brick while canon Blaze is smart enough to run a kingdom, UwU Blaze on the other hand appears to be the type to ask for advice on running her own kingdom and getting angry anyway due to the fact that she meant to be running it herself.
Her character was truly poorly written there the writers just messed with the characters and bullied Tails whenever they felt like it while also bullying him through Amy, Cream, Charmy and Sonic with Shadow and Rouge joining in alongside Blaze.
Yeah, I hated these YouTubers and their channels; I want them dead, I want them in the bloody ground.

9 Cosmo the Seedrian

She's an alien plant that loves Tails and might have a taste for him as far as I can tell.
She clearly wants Tails as more than a boyfriend, maybe even a snack.

Taismo is my OTP but, Taiream is my number one pick; however, I really must say that I don't like the ship between Tails and Tailsko because its pretty much inbreeding and inbreeding is degusting like smoking.
Cosmo truly deserves the number three spot on this list, Eggman gets the number two spot and her boyfriend Tails gets the number one spot for being the most dangerous mind on this list; a genius that he should so stay as, the genius these characters truly are.

Cosmo is far smarter than everybody else on this list accept for Tails, Egg-man, Wave and Shadow, she should have at least be number five.
Why is Sonic there instead of her?
He isn't smart, he runs into danger while a smart person would stop and think of away through while Sonic is not willing to wait for anything.
Cosmo deserves the number five spot not him, she's way smarter than he is.
I think that it'll be for the best if Tails stayed with Cosmo on her home planet instead of heading home with his friends, besides the UwU universe versions of the characters surely wouldn't care if he stayed with her.
Heck, the two of them could program the ship to take them home before exploring the second their all off to make them believe that Tails had been killed in the destroyed spaceship.
Not like they would care anyway.

Taismo is the best ship ever and Taiream comes pretty close to beating it, but Sonamy is forced; Amy Rose forces herself upon him, Sonic is a victim of love not a lover.
Sonamy sounds good in fanfiction, but in the main canon it feels kinda weird and Tails and Sonic Pals/Bulma Bunny makes it even worse.

10 Amy Rose Amy Rose is a fictional character in SEGA's Sonic the Hedgehog series. She is a pink anthropomorphic hedgehog with a cheerful, competitive personality, and is infatuated with the series' main character, Sonic. She serves as the first playable female character in the series.

No, just no. She is not intelligent. You see, in the Advance games, she is really different against the three main characters; Sonic, Tails and Knuckles. She can't jump into a damn ball like them, and even worse, she can't even spindash! And yes, hate me whatever you want, because that's not it; even, EVEN what's worse about her in the games is that she can only use her hammer to attack and does a 'huge leap'. I mean, really? Not intelligent enough, I must say.

I can see why people like her canon counterpart, but Tails and Sonic Pals's version, hell no, I don't like the way she's written, she comes off as being a psychopathic bully or even a psychopathic thug for that matter which canon Amy clearly isn't.
Rewrite idea, link Sonamy with Sontails.
Sonamy is love and Sontails is friendship, have Amy seek out Tails for advice or failing to pleas Sonic to the point that she tracks him down to ask for advice since his Sonic's best friend.

Everybody hates her now days, but we shouldn't, she isn't the worst.
Besides, Tails and Sonic Pals version is clearly the worst.
Trust me, she is.

Amy was a complete psychopath on Tails and Sonic Pals's channel but, she was still a genius despite being a psychopath only she wasn't as smart as Tails.
The real Tails was 100% smarter and to make matters worse, they screwed up at Among Us when it came to their characters.
Tails would have been good at the games as both the crewmate and the imposter but, Bulma Bunny was too stupid and wrote it off as Tails being stupid... I'm triggered, I'm really triggered by how stupid these idiots are and how badly they screw up with the characters and their story plots.
They are by far the worst Sonic writers I have ever seen, Ian Flynn was way better and deserves to go down in history as a great writer... for Sonic, his that good at it because he understands the characters his writing unlike Tails and Sonic Pals, Emerald Masters, Gotta Go Fast and Charmy Bee who writes them off as being complete dicks to each other.
Cream was a unlikable little brat...

The Contenders
11 Silver The Hedgehog

Since he comes from the future, Silver is aware of some very advanced technology that Tails or Eggman can't even imagine. Also, it takes a lot of mental effort to exercise telekinesis, which is impossible for mentally limited people.

He should also have the potential to be one of the smartest sonic characters ever next to Tails and others.

Tails is smarter than him and his from the future...?

Silver relies on his powers too much...

12 Big the Cat

In TSR, everyone was accusing dodonpa for no good reason, until big pointed out that wisps only worked with good people, and almost all the wisps were with dodonpa.

Despite his mindless stare, he's very intelligent. He's proficient in strategy (plays chess regularly), clever-combat (fought literal gods with nothing but a fishing rod and a knowledge of where to hit)

In sonic team racing, he was the only one who thought Dodonpa was good, and he was right! Forget about tails and Eggman! Big is the true genius of the sonic franchise.

Big is actually a smart character. He even taught Cream how to play chess.

13 Sally Acorn

The heroes are dam lucky that Tails is on their side because if he wasn't well, all hell is going to flood into Mobius like a plague.
Tails would take over both worlds without a problem and Sonic can't do anything to stop him unless he allows him to travel with him which he won't, he'd succeed at making the two worlds his and all hope will fall - besides, the only two Mobians that can travel between worlds other than Egg-man are Tails and Knuckles.
Sally Acorn on the other hand is the future queen, she has to be smart in order to rule which she couldn't have done without Nicole - Nicole is the one that made her the girl she is today, if it wasn't for her she wouldn't even be this smart.

She isn't as smart as Tails who I still want to say as a genius and I'm going to do everything I can to make sure he stays as one even if I have to kill for it!
Sorry, I'm just too sick and tired of Tails and Sonic Pals, Emerald Masters, Gotta Go Fast and Charmy Bee to think clearly right now.
I won't kill anyone but, that doesn't mean I'm annoyed at those idiots for making me that angry.
Sally is a good leader end of story.

If you don't know already Tails is actually my favorite character.
He has been my favorite since day one and to tell the truth, it sucks that Tails is being abused in the fandom.
Heck, I despise Team UwU for this reason alone and dare I say it, I really want to something terrible to happen to the YouTubers behind the channels that have pissed me off through their retarded storytelling and terrible ideas; heck, I'll go as far as to say that I'd love to see their houses go up in flames.
Sally Acorn was another character that they ruined and of course removing the dislike button was a mistake on YouTubes behalf.
Canon Sally was actually way smarter than her YouTube counterparts and to tell the truth, I'm not sorry about wanting their houses to go up in flames.
I really want that to happen...

She was smart in Sonic SATAM, but in the Archie Sonic comics she wasn't allowed to be right about anything and was often forced to lose to her own father and once in awhile Egg-man himself.
I don't know, the main canon is a mess at this point.
Characters existing despite not existing in other universes, you understand right...?

14 Cream the Rabbit

Be honest with me here, did anybody like Tails and Sonic Pals, Emerald Masters, Gotta Go Fast and Charmy Bee's YouTube channels or are you like me and think that they have no idea what their doing to the point of being cringe?
Cream may not be as smart as Tails who Shadow actually views as being smart when we're on about the main canon, but his messed up counterpart doesn't and views him as an idiot that can't do anything right since his character was ruined by the cringe that makes up the morons channels, enough said.

I'm going be honest here I don't like Cream's character and it mostly ties to the fact that I completely despise Tails and Sonic Pals, Emerald Masters, Gotta Go Fast and Charmy Bee's YouTube channels because I really hate the way the characters have been written.
Tails isn't the character his suppose to be, Sonic has a retarded obsession with ducks, Amy and Cream are complete psychopaths and Shadow is pretty much a parody of Squidward from SpongeBob.

I'm going to be honest here and say that I despise Team UwU's version of Cream, not to mention the fact that I hated her fanon counterparts as well.
Yeah, Cream pisses me off, but her canon counterparts are alright despite still being unlikable at times.
She is smart yes, but Tails is still the smartest in my books and since I despise the YouTubers Tails and Sonic Pals, Emerald Master, Gotta Go Fast and Charmy Bee with all of my heart because they truly are retarded pieces of crap that can't do anything right no matter how hard they true because they don't try hard enough because their scripting is 100% garbage.

She still isn't as smart as Tails or even Eggman for that matter.
In fact, she isn't as smart as the two of them combined.
She does have moments such as Sonic Heroes but even then she doesn't stand a chance of being a genius and I still despise Tails and Sonic Pals, Emerald Masters, Gotta Go Fast and Charmy Bee.
Tails and Eggman are way smarter than they think they are and everything they've said about the characters has been 100% wrong, this just proves that their idiots.
Cream is smarter than them at least.
Also I love the idea of Vanilla and Shadow going to Tails to get the gear repaired from Shadow's bike to the machines Vanilla uses in her kitchen.

15 Knuckles the Echidna Knuckles the Echidna is a fictional character in Sega's Sonic the Hedgehog series. He is a red anthropomorphic echidna who is determined and serious, but sometimes gullible. He has the ability to glide and climb up walls, and is a powerful fighter due to his spiked hands.
16 Charmy the Bee

I'm well aware of the fact that Tails and Sonic Pals has made her version of Tails an idiot since Bulma Bunny would do that judging from what she did to Bulma's character on her Bulma Bunny YouTube channel, but Charmy would never beat Tails in a battle of brains, there is no way he'll ever top the genius level intelligent that Tails has in spades.
Tails is number one here and he should stay there, forever.
Besides, I still want to see some Tails as Emperor Belos fan art, come on artist please draw something like that.

Chaream isn't as popular as Taiream and it truly shows throughout the fandom.
Tails and Charmy would make great rivals, but he isn't as smart as the young kitsune in question, Charmy can be clever at times despite him being a child in more ways than one while Tails is more adult and clever than he'll ever be.
All of these characters have brains, but none of them come close enough to beating Egg-man and Tails.
Egg-man the smartest man alive and Miles "Tails" Prower the god of all geniuses.

Charmy isn't as smart as Tails, but he does have his moments, he can still walk the walk and talk the talk.
His just, not smart enough to stick his toes in the water of geniuses while Tails and Egg-man have already done so with Egg-man acting as if he can't swim to Tails swimming as if he was born to do so.

I really don't like Chaream nor do I like Tails and Sonic Pals, Emerald Masters, Gotta Go Fast and Charmy Bee's version of the character or any of them for that matter.
Besides, they could have used Taismo and Chaream to begin with before moving onto Taiream which would have been a much better idea than making Tails a simp and a playa which was pretty dumb if you ask me; heck, Tail Twister did a much better job than them, besides wouldn't it be pretty cool to see SonicSong182 draw Tails as Emperor Belos from the hit new Disney show The Owl House.
Now with all of that out of the way Charmy isn't as smart as Tails or even Egg-man for that matter, Egg-man has a IQ of 300, but Tails; Tails's IQ is truly beyond that of Egg-man's, Tails is a god when it comes to brains.
Charmy can't top that.

17 Dr. Gerald Robotnik

I admit that he made Shadow and that's genius enough there but, the main problem with that is that he made Shadow.
He created the ultimate life form yes but, he also created the ultimate wannabe Sonic.
What part of this screams ultimate life form besides Shadow himself?
Shadow is powerful yes but, he isn't as good as anything Tails can create low.
Why doesn't Tails create his own ultimate life form and have Shadow face it in a battle to the death or otherwise?
Gerald was able to create Shadow with a single chaos emerald, just imagine what Tails could create through a chaos and sol emerald with a time stone to add an extra punch - Shadow doesn't stand a chance, Bulma Bunny knows nothing about the characters nor the main canon for that matter seeing that their too stupid to understand jack about Sonic the hedgehog.

The only thing his known for is creating Shadow, we really could have seen more creations of his in the game Shadow the hedgehog and we didn't.
Heck, Black Doom didn't really need to be there because they could have just replaced him with Tails or even Egg-man and the story would have changed for the better with Tails helping Shadow out of the kindness of his heart while Egg-man just wants to use him for another scheme.

I have no idea why Eggman Nega is above him while compared to his goals but, Gerald is still pretty dumb himself because he wanted Shadow to kill innocent people just because he lost Maria which was all due to him creating weapons like Project Shadow.
If he would have use the data from the chaos emerald to save Maria instead of creating a weapon she might have still been alive to this day and might actually be the near the same age as the G.U.N. commander, she'd be a bit older yes but she would still be alive and well.
Also I still think that Tails played a big part in how Gerald found out about the chaos emeralds and that Eggman was born on Mobius but, am I right.

Why do Tails and Sonic Pals have 900K subscribers when there videos are cringey as heck?
Their viewers must be really dumb or really young to the point that their expecting everything that happens on the channels, dumb or young make your choice because I'm mostly going with dumb despite them mostly being children.
Now, Gerald created Shadow that's all.

18 Dr. Eggman Nega Doctor Ivo "Eggman" Robotnik is a fictional video game character and the main antagonist of the Sonic the Hedgehog series, created by Sega.

Eggman Nega might actually be the dumbest member of the Eggman line and the dumbest member of the genius Robotnik family, yes Eggman and Tails are both smarter than him while compared to the way his written in the series.
Also SEGA should put some rules to their everything is canon statement because I for one would not like Sonic porn to be canon in a child friendly series.

Doctor Egg-man Nega isn't as smart as Egg-man and Tails, but he still knows his way about tech and machines just like Egg-man himself, Egg-man is still smarter low and Tails takes the cake.

I'm actually a bit confused about Egg-man Nega, heck this picture isn't even of him.
Its of Egg-man not Egg-man Nega.
Newcomers are going to come onto this site and see two Egg-man's and get confused, kinda like how "Team UwU" confuses people on YouTube before getting informed by Ian Flynn that this isn't the case.

Eggman Nega is probably the most dangerous eggman, but I still believe the original Eggman is smarter based on some interactions they've had.

19 Infinite

Tails is Infinite, the story would have been better if he was.

Tails is Infinite, it works because his already a genius.

Tails is Infinite, he has to be for this to work...

Smart, and beautiful

20 Espio the Chameleon Espio The Chameleon is a Sonic character first appearing in the 1995 Sega 32X title, Knuckles' Chaotix alongside Charmy Bee and Vector the Crocodile. Espio's appearance in Knuckles' Chaotix depicts him as a character with a hot temper which causes Charmy to remind him about his manners. In Sonic Heroes, his personality takes a dramatic change becoming a ninja and being the cool, calm and collected one of Team Chaotix. Espio is the speedy member of Team Chaotix and can turn invisible which makes him a huge asset to his teammates: Charmy Bee and Vector the Crocodile.

I wouldn't blame him for being an alcoholic because I'm one.
Tails might have formed Team Chaotix low.

He might be smarter than Vector.

It takes brains to be a detective, and this guy is the smartest of all the chaotix.

Espio's an alcoholic.

21 Vector the Crocodile Vector the Crocodile is a fictional anthropomorphic crocodile from the Sonic the Hedgehog series who debuted in Knuckles' Chaotix in 1995, and later returned in Sonic Heroes as head detective of the Chaotix Detective Agency. With a great love for music and money (the latter which he is always short on), Vector is a clever detective who will always help those in need for free. He was one of the first characters created for the Sonic franchise, supposed to appear as part of Sonic's band in the original Sonic the Hedgehog game in 1991.

Tails is his boss from from the shadows seeing that he might be the one that formed them as a back up plan just encase their skills are needed.
Heck, they've never battled Team Sonic and Tails might have been the one to kickstart the team in the past through his high IQ and clever wit.
Not even Vector knows, unless he does and is hiding the fact because Tails is paying him to keep quiet on the subject because he formed them behind Sonic's back...

This guy isn't very good at his job, yeah I said it.
Heck, why didn't SEGA give him a rival in the form of another detective, only, this guys a ace detective.
Besides, Vanilla could help him out at times.
Sonic Heroes remake anyone...

Ace detective deduced the entirety of the plot to Sonic Heroes after 1 interaction, despite his gangster looks he's a bit of a Sherlock.

He is a detective and was able to figure out that eggman was their client in sonic heroes.

22 Sticks the Badger

Sticks the badger isn't as smart as Tails and she says that Amy is smart for no reason unless its to annoy/mess with Tails because she hates him, Tails is the smartest not Amy or her for that matter.

I'm not sure why she's here but, I guess she's smart enough.
If you think that tribal or even crazy girls are smart, be my guest and vote for her.
Fine by me, you do you...

Why is she here again?
She isn't a genius, she's a forest girl.

I'm not too sure myself...

23 Neo Metal Sonic

He can be even more intelligent than Metal sonic.

Metal Sonic was actually smarter as this guy...

24 Lyric the Last Ancient

Dude has Eggman level intellect based on his tech, also he did that in prehistoric times so bonus points.

What do you want me to say about him?

25 Fang the Sniper

Fang was actually way smarter in Sonic the comic then he was in the main canon, but he still has his moments and he still outsmarts Fleet-way Sonic more times than the fans might like to admit; also Sonic kinda killed him at the end of the comic he appeared in, remember true heroes never kill they only kill if they have to and Sonic really didn't need to kill Fang in Sonic the comic.
Besides, I actually kinda liked the guy which was mainly due to the fact that his a hybrid and I love those types of characters enough said.

He isn't as smart as Tails, but he still stands as being a pretty smart character despite the existence of the greatest minds on Mobius, the greatest minds in existence.
The greatest minds to ever live.
-Adam C. Evers

He was way smarter in Sonic the comic/Fleetway before he was killed by Sonic in their final battle, Fleetway Sonic pretty much lives up to the song from Drowning Pool; you know the one I mean, Fleetway Sonic only cares about one person, himself.
He was known as Nack but now, his name is Fang.
Yeah, he was smarter as Nack not Fang.

Fang was actually pretty smart in Sonic the comic where Super Sonic was a villain.

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