| Name | Type(s) | Team(s) | Source | Notes | | T'Pol | Smarty | Starfleet | TV: Enterprise | | | Tachyon | Super Person | Quest, Inc. | New Men | | | Tailgunner Jo | Fighter, Smarty | Team Science | | | | Talisman | Unique | Justice Machine | Justice Machine | | | Talisman | Magic | Planeteers | Marvel | | | Tana Moon | Journalist | | DC | | | Tana Nile | | Power Pack | Marvel | | | Tapis | Teleporter | | Xanith | | | Tarianna | Fighter | Fantastic Force | Marvel | | | Taskmaster | Fighter, Redeemed | Justice League - Wakanda
| Marvel | | | Tasmanian Devil | | | DC | | | Tawky Tawny | | | DC | | | Taz | Fighter, Killer, Soldier | Rebels | DC: Atari Force | | | Tazlings | Children | Power Pack | DC: Atari Force | | | Teela | Fighter, Magic | | Masters of the Universe | | | Teeny Weeny and the Nighthob | | | Neverending Story | | | Tekla | Leader, Robot | | Future Force | | | Tellus | Telepath | Justice League North America | DC | | | Tempest (Aqualad) | Aquatic, Magic | Agents of Atlantis | DC | | | Tempest (Chris Champion) | Teleporter | Atari Force | DC | | | Tempest (Joshua Clay) | Flyer, Medical | Doom Patrol | DC | | | Teppic | | Another Day, Another Dungeon | Discworld | | | Terra | Elemental, Youth | | DC | | | Terry Long | Spouse | | DC | With Donna Troy | | Thanos | Redeemed, Semi-Cosmic, Smarty | Advisory Council | Marvel | | | Thena | Eternal, Telepath | Leadership Council | Marvel | | | Thena II (Thundergod) | | Titans | Marvel | | | Theo | | | Buck Rogers | | | Thing (Ben Grimm) | Brick | Fantastic Force | Marvel | | | Thor | Godling | | Marvel | | | Thornn | Fighter | Thundercats | Marvel | | | Thundarr | Fighter, Leader | | Thundarr | | | Thunder (CeCe Beck) | Super Person | Legion of Superheroes | DC: Marvel Family | | | Thunderstrike (Eric Masterson) | Godling | Spider Family | Marvel | | | Tigra (Greer Nelson) | Fighter | Thundercats | Marvel | | | Tim Hunter | Magic, Youth | Generation Next | DC | | | Timaeus | Magic | Another Day, Another Dungeon | Another Day, Another Dungeon | | | Timberwolf | Brick, Fighter | Secret Sixteen | DC | | | Tin | Pure of Heart, Robot | Metal Men | DC | | | Tin Man | Pure of Heart | | Oz | | | Titan | Brick | Justice Machine | Justice Machine | | | Tiwaz | Magic | Advisory Council | Marvel | Odin's Dad | | Toby Shrek | Journalist | | Deathstalker | | | Tom Thumb | Smarty | Squadron Supreme | Marvel | | | Tom | Pure of Heart, Unique | | DC: Green Lantern | | | Tommy | Youth | | Marvel | | | Tomorrow Woman | Super Psychic | Freak Force | DC | | | Topaz | Magic | | Marvel | | | Toph | Elemental | | Avatar | | | Toro | Flyer | Titans | Marvel | Human Torch sidekick | | Torque | Brick | Steelworks | Harbinger | | | Toto | Animal | | Oz | | | Traci Thirteen | Magic, Youth | Spider Family | DC | | | Triplicate Lass | | Legion of Superheroes | DC | | | Triton | Aquatic | Agents of Atlantis | Marvel | | | Tuatara | Unique | Team Science | DC | | | Turbo (Mickey) | Flyer, Powersuit, Youth | Generation Next | Marvel | | | Turok | Fighter, Killer | Suicide Squad | | | | Twigi | Robot | | Buck Rogers | | | Tygra | Fighter | Thundercats | Thundercats | | | Typhoid Mary | Telepath | Justice Machine | Deathstalker | | | Typhoid Mary | Fighter, Redeemed, Telepath | Secret Sixteen | Marvel | |
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