The Four Game Masters

From Yu-Gi-Oh!

The Four Game Masters (ゲーム四天王 Gemu Shitteno), are a group of gamers from the first series anime, hired by Seto Kaiba to defeat Yugi.

The Game Masters include: Ridley Sheldon, Ryuichi Fuha, Aileen Rao and Daimon

Characters

Yu-Gi-Oh! Characters
Protagonists	Yugi Muto (Yugi Mutou) - Joey Wheeler (Katsuya Jonouchi, Katsuya Jyonouchi) - Téa Gardner (Anzu Mazaki) - Tristan Taylor (Hiroto Honda) Pharaoh Atem
Antagonists	Maximillion Pegasus (Pegasus J. Crawford) - The Four Game Masters - Weevil Underwood (Insector Haga) Rex Raptor (Dinosaur Ryuzaki) - "Bandit" Keith Howard - Paradox Brothers (Meikyū Brothers) - The Big Five - Rare Hunters (Ghouls) Yami Marik - Noah Kaiba - Gozaburo Kaiba - Anubis - Dartz - Rafael - Valon - Alister (Amelda) Zigfried von Schroeder (Siegfried von Schroider) - Aknadin (Akhenaden) - Zorc Necrophades
Other	Melody (Miho Nosaka) - Seto Kaiba - Mokuba Kaiba - Ryo Bakura - Solomon Muto (Sugoroku Mutou) - Shadi - Mai Valentine (Mai Kujaku) Serenity Wheeler (Shizuka Jonouchi, Shizuka Kawai) - Mako Tsunami (Ryota Kajiki) - Rebecca Hawkins (Rebecca Hopkins) Duke Devlin (Ryuji Otogi) - Ishizu Ishtar - Odion Ishtar (Rishid Ishtar) - Dark Magician Girl (Blamagigirl) Leon von Schroeder (Leonhart von Schroider) - Grand Championship Contestants - The Sacred Guardians - Mana Yu-Gi-Oh! anime and manga characters - Yu-Gi-Oh! anime, manga or movie only characters - Yu-Gi-Oh! R characters

Yu-Gi-Oh! GX Characters
Protagonists	Jaden Yuki (Judai Yuki) - Alexis Rhodes (Asuka Tenjouin) - Syrus Truesdale (Sho Marufuji) - Chazz Princeton (Jun Manjoume) - Bastion Misawa (Daichi Misawa) - Atticus Rhodes (Fubuki Tenjouin) - Tyranno Hassleberry (Tyranno Kenzan) - Blair Flannigan (Rei Saotome)
Antagonists	Shadow Riders (Seven Star Assassins) - Sartorius (Takuma Saiou) - Yubel - Nightshroud (Darkness) Society of Light - Professor Viper (Professor Cobra) - Martin Empire - The Supreme King (Haou) - Brron, Mad King of Dark World - Trueman - The Light of Destruction (The Light of Ruin)
Other	Vellian Crowler (Cronos de Medici) - Zane Truesdale (Ryo Marufuji) - Chumley Huffington (Hayato Maeda) - Lyman Banner (Daitokuji) Aster Phoenix (Ed Phoenix) - Jesse Anderson (Johan Andersen) - Adrian Gecko (Amon Garam) - Axel Brodie (Austin O'Brien) Jim Crocodile Cook - Yusuke Fujiwara - Duel Academy Staff - Sarina (Mizuchi Saiou) North Academy - Pro League Duelists Minor Characters - Manga only Characters - Duel Monsters Spirits

Yu-Gi-Oh! 5D's Characters
Protagonists	Yusei Fudo - Aki Izayoi - Lua - Luca - Jin Himuro - Yanagi Tenzen - Saiga
Antagonists	Rex Godwin - Jeager - Tetsu Ushio - Akutsu - Takasu
Rivals	Jack Atlus - Bommer - Mukuro Enjo
Other	Rally Dawson - Nerve - Taka - Blitz - Uryu - Mikage Sagiri - Kohei Aoyama - Tenpei