1 Piccolo
Piccolo is a fictional character in the Dragon Ball manga series created by Akira Toriyama. He first appeared in chapter 161 of the Dragon Ball manga in the Shonen Jump magazine on February 22, 1988. He is a member of the alien Namekian race and has abilities such as ki manipulation, regeneration, telepathy, flight, and superhuman hearing. Besides having the combined knowledge of the two ancient beings King Piccolo and Kami, he also has all of the Namekian knowledge of Nail and his own earthly experience. With the combined intellects of at least 4 individuals and the time he spends alone in meditation, Piccolo is nothing short of a genius. Its his strategic mind that has saved Goku and his friends on a number of occasions. If he wasn't so focused on martial arts mastery, who knows to what ends he could put his mind?
2 Bulma
Bulma is a fictional character in the Dragon Ball manga series created by Akira Toriyama. Bulma is the most significant female character in the series. Invented the dragon radar and a time machine.
No doubts about it Dr. Brief
3 Dr. Gero
An earthling that was able to create Androids that were even more powerful than aliens like Frieza. He was even able to turn himself into an Android. And created a biological being that consists of DNA acquired from the most powerful warriors in the universe. That's brilliant.
4 Zarbon
Zarbon is Frieza's right hand man and highest ranking Commander and General in an army of millions. He is always beside his master and emperor, Lord Frieza, following his orders and carrying out his dirty work alongside his comrade, Dodoria. Zarbon is responsible for advising Frieza on numerous matters, including the elimination of the Saiyan race. Zarbon remains loyal to Frieza throughout the entire story arc, executing young Namekian children and elderly, collecting the Namekian Dragon Balls, and in general, offering his efforts to increase Frieza's reign in the galactic planet trade. As a refined warrior, Zarbon is a vain lover of beauty and a blue-skinned alien designed as a handsome elite. ...read more.
5 Frieza
Freeza (Pronounced "Frieza" in the Funimation dub) is fictional character in the Dragon Ball series by Akira Toriyama as the primary antagonist of the Freeza Saga. He is a galactic tyrant who governs the Planet Trade Organization and is feared by the universe for his sadistic and brutal nature. He is the series's most personal and significant antagonist, being responsible for many of the series' events, most notably Goku's transformation into a Super Saiyan.
6 Gohan
Son Gohan is a fictional character in the Dragon Ball manga series created by Akira Toriyama. Gohan is introduced as the first son of the protagonist Goku, and his wife Chi-Chi, in chapter #196 Kakarrot, first published in Weekly Shōnen Jump magazine on October 24, 1988. Chi-Chi is a strict and protective mother to Gohan, forcing him to focus on his studies and forbidding him from practicing martial arts. However, due to the various threats to the Earth, she reluctantly allows him to fight, with him ultimately becoming one of the strongest characters in the series. Gohan has been well received by both fans and critics, the latter usually citing the character's growth from his initial appearance ...read more. Gohan doesn't lack experience in battles, by 11 he surpassed his father and became, at that time, the strongest in the universe as buu was still dead or locked away and he even took on buu as well becoming the strongest unfused character in dbz as ultimate gohan. Also at 6 he went up against frieza, who was at the time undeniably strong, his name was enough to completely scare king kai and owned a galactic planet control organisation. At the time of the namek saga, nobody, not even vegeta would dare go up against him but yet he fought him took him down, before frieza went into his stronger form. Taking on cell, frieza and buu, being the strongest in the universe twice, ultimate gohan and super saiyan 2 gohan, I think that qualifies as the highest level of experience in the universe, even if in between cell and buu, he started to slack off a bit. He is very good academically and considered a genius, as well as being battle smart and being the captain for the winning team which is ...more
He's the smartest academically being a scholar, though he lacks experience in battles.
7 Dr. Brief
8 General Blue
General Blue is an antagonist in the Dragon Ball manga and the anime Dragon Ball, and also makes an appearance in Dragon Ball GT.
9 Vegeta
Vegeta is an anime fictional character from the anime series, Dragon Ball Z, created by Akira Toriyama. He can do Mathematics with ease and he could've possibly learned Multiple Languages while he was a kid, maybe Planet Vegeta has a different official language. You never know how he successfully learned how to speak Earthling?
He's very tactical and is a brilliant strategist, though his pride does blind his judgement at times, which results in his making false decisions.
10 Android 19
The Contenders
11 Dr. Kochin
12 Dr. Wheelo
13 Master Roshi
Master Roshi is an anime fictional character from the anime series, Dragon Ball Z, created by Akira Toriyama. He has 300 years' worth of experience. That's saying something.
14 Dr. Myuu
15 Trunks
Trunks is an anime fictional character from the anime series, Dragon Ball Z, created by Akira Toriyama.
16 Krillin
Krillin (クリリン, Kuririn) is a supporting protagonist in the Dragon Ball manga, and the anime series Dragon Ball, Dragon Ball Z, Dragon Ball GT and Dragon Ball Super. ...read more. He is a very good strategist and is fairly experienced and innovative during fights.
As experienced as Goku, but more innovative.
17 Whis
Whis is an anime fictional character from the anime series, Dragon Ball Super, created by Akira Toriyama. He is an angel who's probably been around for a long time, way longer than any of the people on this list, other than shenron, there is no one who rivals him in this category.
Whis and any of the other angel seem to be highly intelligent they already know stuff before most character realize anything. They are always having to explain things
18 Zuno
He is a nigh-omniscient being enough said.
19 Hit
20 Android 21
21 Future Bulma
22 Elder Kai
He knows a lot.
23 Fortuneteller Baba
24 Shenron
Shenron is an anime fictional character from the anime series, Dragon Ball Z, created by Akira Toriyama. He is an all knowing, all powerful being who can grant any wish. No words on how smart he is.
25 Goten
Goten is an anime fictional character from the anime series, Dragon Ball Z, created by Akira Toriyama.