In most anime,there some characters who are just interesting enough to have their own series.
1 L - Death Note
L Lawliet, exclusively known by the mononym L, is a fictional character in the manga series Death Note, created by Tsugumi Ohba and Takeshi Obata.
2 Roronoa Zoro - One Piece
Roronoa Zoro, nicknamed "Pirate Hunter" Zoro, is a fictional character in the One Piece franchise created by Eiichiro Oda.
3 Roy Mustang - Fullmetal Alchemist : Brotherhood
Roy Mustang is a fictional character from the Fullmetal Alchemist manga series and its adaptations created by Hiromu Arakawa.
Now that would be amazing. I always wanted to know more about Roy's backstory. Make it happen. - Elric-san
4 Sesshomaru - Inuyasha
Such an awesome character with a great voice actor and a great story
5 Gajeel Redfox - Fairy tail
Gajeel Redfox is a fictional character from the anime Fairy Tail. He is the Iron Dragon Slayer. He was an antagonist in his first appearance, fighting main character Natsu Dragneel. He later ended up turning to Fairy Tail's side, and most commonly fights alongside Levy McGarden and Panther-Lily.
6 Heine Westenfluss - Gundam SEED Destiny
His backstory as a ZAFT pilot during and after the First Bloody Valentine War would make a great spin-off OVA or manga. They should also show Heine's involvement with the testing of the Destiny Gundam in it's original colors (the orange Heine Westenfluss custom). - PerfectImpulseX
7 Gaara - Naruto
Gaara is a fictional character in the Naruto manga and anime series created by Masashi Kishimoto. He is the jinchuuriki of the one-tailed shukaku and can control sand that is stored in his gourd.
That would be an interesting anime - Nickiminaj4life
A tremendous deep story
8 Renji Abarai - Bleach
9 Miguel Aiman - Mobile Suit Gundam SEED
10 Mari Ohara - Love Live! Sunshine
11 Nico Yazawa - Love Live! School Idol Project
12 C.C. - Code Geass
C.C. is the pseudonym of a fictional character in the Code Geass: Lelouch of the Rebellion anime series by Sunrise. C.C.'s real name is never shared with the audience, despite eventually being learned by protagonist Lelouch Lamperouge.
She lived through many years. And the origins of the power of geass was never explained much in CG: Lelouch of the Rebellion.
13 Gray Fullbuster - Fairy Tail
Gray Fullbuster a fairytail wizard is a kind sensitive person which can be mainly found in underwear or fighting a guildmate / friend brother Natsu Dragneel (which I am supersede dint make this list) anyway Gray has a habit of stripping which he found while training with his now unfortunately dead master ...read more.
I want Ice Trail to be animated.
Archer is a fictional character from the Japanese visual novel and anime series Fate/stay night by Type-Moon. He is the Archer-class servant of Rin Tohsaka during the Fifth Holy Grail War in Fate/stay night.
They should at least make an OVA about Archer's past and how he came to be the Counter Guardian he is now, only we get to experience more of it in his eyes. - ModernSpongeBobSucks
15 Robert E. Speedwagon - Jojo's Bizarre Adventure
Robert E.O. Speedwagon actually.
Sorry, I must've made a typo. - PerfectImpulseX
16 Jellal Fernandes - Fairy Tail
Jellal Fernandes is a childhood friend of Erza Scarlet. When he lost his own memory, he was a Dark Mage who desperately sought to revive Zeref via the R-System. Jellal served as the main antagonist of the Tower of Heaven arc and is currently a member and co-founder of Crime Sorcière.
It'd be great to see Jellal grow up. I think he and Erza will be better protagonists than Natsu and Lucy, their story is more intriguing and their characters are way deeper. - Goku02
17 Rohan Kishibe - Jojo's Bizarre Adventure
18 Minene Uryu - Future Diary
An OVA based on her past would be delightful to watch.
19 Teresa - Claymore
20 Ruby Kurosawa - Love Live! Sunshine!!
21 Erza Scarlet - Fairy Tail
Erza Scarlet is an S-Class Mage from the infamous magic guild Fairy Tail . Erza starts off as a lone wolf and stays loyal to following the rules. As the story develops Erza changes into loving mage strong and independent. As her terrible past haunts her she ignores her friends' calls that they want ...read more.
22 Dio Brando - Jojo's Bizarre Adventure
Dio Brando is a fictional character from the JoJo's Bizarre Adventure manga series created by Hirohiko Araki. His name was inspired by musician Ronnie James Dio and movie star Marlon Brando.
23 Gilgamesh - Fate/Stay Night
Gilgamesh is a fictional character from the Japanese visual novel and anime series Fate/stay night by Type-Moon. He is the Archer-class servant of Tokiomi Tohsaka and a secondary antagonist during the Fourth Holy Grail War in Fate/Zero. He reprises his role as a secondary antagonist during the Fifth ...read more.
Gilgamesh one of the best character ever created
I would like something like an OVA series depicting Gilgamesh's past, especially his relationship with Enkidu. - ModernSpongeBobSucks
24 Lord Genome - Tengen Toppa Gurren Lagann
25 Gary Oak - Pokemon
Gary oak appeared in the anime series in seasons 1-5 . He was ash's rival and childhood friend . Though they had a dispute once they fought over a rusty pokeball they wanted for luck, which broke after they fought over it . Gary was the grandson of professor oak . He had cheerleaders & his own car. ...read more.
26 Garou - One Punch Man
27 The Snow Queen (Yuki no Joou 2005)
Thank you for putting her on this list.
28 Master Asia - Mobile Fighter G Gundam
29 Nozomi Toujou - Love Live! School Idol Project
30 Lucy - Elfen Lied
Lucy (born as kaede), is a tragic, fictional Japanese Anti-Heroine, and Anti-Villianess, who is the main protagonist of her debut source, a manga officially known as Elfen Lied [alfen leed], written and illustrated by Lynn Okamoto, which was best known for it's T.V. adaptation of the same name, Directed ...read more.
I love her.
31 Rin - Inuyasha
32 Misty - Pokemon
Misty, known as Kasumi in Japan, is a fictional character in the Pokémon franchise owned by Nintendo and created by Satoshi Tajiri. She’s the gym leader in Cerulean city & specializes in water Pokemon. In the games, she’s known as ‘the tomboy mermaid.’ ...read more.
33 San - Princess Mononoke
I love her.
34 Vinsmoke Sanji - One Piece
Vinsmoke Sanji, most commonly known by his moniker "Black Leg" Sanji, is a fictional character in the One Piece franchise created by Eiichiro Oda.
35 Oolong - Dragon Ball Z
36 Gyro Zeppeli - JoJo's Bizarre Adventure
We need more gyro - samanime
37 Hinata Hyuga
Hinata Hyuga is a fictional character in the anime and manga franchise Naruto, created by Masashi Kishimoto.
38 Yuno Gasai - Future Dairy
39 Asuka Langley
40 Rei Ayanami - Neon Genesis Evangelion
Rei Ayanami is a fictional character from the Neon Genesis Evangelion franchise. She is the First Child (First Children in the Japanese version), pilot of the Evangelion Unit-00 and one of the female main characters.
41 Mikuru Asahina - The Melancholy of Haruhi Suzumiya
43 Sango - Inuyasha
44 Inuyasha - Inuyasha
45 Kohaku - InuYasha
46 Kaya - Princess Mononoke
47 Madame's Granddaughter - Kiki's Delivery Service
48 Senior Witch - Kiki's Delivery Service
49 Yukishiro Tomoe - Rurouni Kenshin
50 Hikari Horaki - Neon Genesis Evangelion