Professor Charles Xavier / Charles Xavier / Professor X / Dr. James Xavier / Purple Man / Red Skull / Zebediah Killgrave (75 episodes, 1992-1997)
Beast / Dr. Henry 'Hank' McCoy / Dr. Hank McCoy (75 episodes, 1992-1997)
Jubilation Lee / Jubilee / Jubliee (74 episodes, 1992-1997)
Rogue (74 episodes, 1992-1997)
Wolverine / Logan (74 episodes, 1992-1997)
Jean Grey / Phoenix (73 episodes, 1992-1997)
Cyclops / Scott Summers (73 episodes, 1992-1997)
Gambit / Remy LeBeau (72 episodes, 1992-1997)
Storm / Ororo Munroe (49 episodes, 1993-1997)
Magneto / Erik Magnus Lehnsherr / Magnus / Magnus the Magnificent (29 episodes, 1992-1997)
Cable / Nathan Summers / Erik the Red / Erik the Redd / Nathan Dayspring-Summers / Captain America / Steve Rogers (24 episodes, 1992-1997)
Sabretooth / Graydon Creed Sr. / Dr. Michael Twoyoungmen / Eugene Milton Judd / Phalanx / Puck / Shaman (23 episodes, 1992-1996)
Morph / Kevin Sydney / Ch'od (21 episodes, 1992-1997)
Forge / Kurt Marko (21 episodes, 1992-1996)
Bishop / Lucas Bishop (21 episodes, 1992-1995)
Ruckus / Carly's father / Chrome / Scanner operator / Security Guard (21 episodes, 1992-1995)
Archangel / Cameron Hodge / Bender / Warren Worthington III / Angel / Death / Immortus / Phalanx (21 episodes, 1992-1996)
Apocalypse / En Sabah Nur (21 episodes, 1992-1995)
Shard / Annalee / Shard Bishop (20 episodes, 1992-1995)
Dr. Moira McTaggart / Moira MacTaggert / Dr. Moira MacTaggart / Dr. Moira MacTaggert (19 episodes, 1992-1997)
Mystique / Raven Darkholme / Aurora / Domino / Jeanne-Marie Beaubier / Neena Thurman (19 episodes, 1992-1996)
Magneto / Erik Magnus Lehnsherr (18 episodes, 1992-1996)
Henry Peter Gyrich / Colonel / James MacDonald Hudson / Vindicator (18 episodes, 1992-1997)
Pietro Maximoff / Quicksilver / Byron Calley / Kiyoek (18 episodes, 1992-1996)
Juggernaut / Cain Marko / Colossus / Piotr Rasputin (17 episodes, 1992-1995)
Banshee / Sean Cassidy (17 episodes, 1992-1996)
Kevin MacTaggert / Proteus / Young Charles Xavier (16 episodes, 1992-1995)
Ororo Munroe / Storm (16 episodes, 1992-1994)
Blob / Colossus / Frederick Dukes / Piotr Rasputin (16 episodes, 1992-1994)
Sentinels / Mastermold (16 episodes, 1992-1995)
Bolivar Trask / Dr. Bolivar Trask (15 episodes, 1992-1995)
Ape (15 episodes, 1992-1995)
Avalanche / Dominick Petros (15 episodes, 1992-1994)
Cannonball / Samuel Guthrie (15 episodes, 1992-1997)
Famine / Shiro Yoshida / Autumn Rolfson (15 episodes, 1992-1997)
Pyro / St. John Allerdyce / John Allerdyce (15 episodes, 1992-1994)
Plague / Pestilence (14 episodes, 1992-1994)
War (14 episodes, 1992-1994)
Mystique / Raven Darkholme (14 episodes, 1992-1994)
Mr. Sinister / Nathaniel Essex / Mr.Sinister (14 episodes, 1993-1997)
Senator Robert Kelly / President Robert Kelly / Jubilee's Foster Father / Marco Delgado / Phalanx / President Kelly / Supreme Intelligence / US Delegate (8 episodes, 1992-1996)
Graydon Creed / Leech (8 episodes, 1993-1996)
Amelia Voght / Callisto / Scarlet Witch / Wanda Maximoff (7 episodes, 1993-1996)
Gorgeous George / Longshot (6 episodes, 1993-1996)
Lilandra (6 episodes, 1994-1997)
Sauron / Ka-Zar / Brainchild / Additional voices / Dr. Karl Lykos (6 episodes, 1994-1996)
Gambit / Remy LeBeau / Arkon (6 episodes, 1996-1997)
Gladiator (5 episodes, 1994-1995)
Illyana Rasputin / Little Girl / Paige Guthrie / Sally Blevins / Skids (4 episodes, 1993-1997)
Phalanx / Warlock / Tarbaby (3 episodes, 1993-1996)
Vertigo / Shanna the She-Devil (3 episodes, 1993-1994)
Hairbag (3 episodes, 1993-1994)
Banshee / Sean Cassidy / Black Tom Cassidy (3 episodes, 1994-1995)
Corsair (3 episodes, 1994-1995)
Fabian Cortez (3 episodes, 1995-1997)
Nightcrawler / Kurt Wagner (3 episodes, 1995-1996)
Shadow King (2 episodes, 1993-1996)
Arkady Rossovich / Omega Red (2 episodes, 1993-1996)
Snowbird (2 episodes, 1993-1994)
Jean-Paul Beaubier / Northstar (2 episodes, 1993)
Major Domo (2 episodes, 1994-1996)
Mojo (2 episodes, 1994-1996)
Spiral / Ricochet Rita (2 episodes, 1994-1996)
Jason Wyngarde / Mastermind (2 episodes, 1994)
Lady Deathstrike / Yuriko (2 episodes, 1994)
Donald Pierce (2 episodes, 1994)
Sebastian Shaw (2 episodes, 1994)
Zaladane (2 episodes, 1994)
Amphibius / Barbarus (2 episodes, 1994)
Harry Leland (2 episodes, 1994)
Apocalypse / High Evolutionary (2 episodes, 1995-1996)
Psylocke / Elisabeth 'Betsy' Braddock (2 episodes, 1995)
Apocalypse / En Sabah Nur / Solarr (2 episodes, 1996-1997)
Arcade Manager (1 episode, 1992)
Dr. Walter Langkowski / Sasquatch (1 episode, 1993)
Heather McNeil Hudson (1 episode, 1993)
Barbarus (1 episode, 1993)
Darkstar (1 episode, 1993)
Cody Madison Robbins (1 episode, 1993)
Carol Danvers / Ms. Marvel (1 episode, 1994)
Carmela Unuscione (1 episode, 1995)
Raknar (1 episode, 1995)
Silver Fox (1 episode, 1995)
Bobby Drake / Iceman (1 episode, 1995)
Master Oku (1 episode, 1996)
Silver Samurai (1 episode, 1996)
Gog (1 episode, 1996)
Additional voices (1 episode, 1996)
German Soldier (1 episode, 1997)
Katana (uncredited) (1 episode, 1995)