S
T
- Tailed Beasts
- Taka
- Talon
- Task Force 141
- Task Force X
- Task Force: STALKER (Ghosts)
- Team 7
- Team 7
- Team America
- Team Arrow
- Team Asteroid
- Team Caesar
- Team Chaos
- Team Chaotix
- Team Dark
- Team Dreadnought
- Team Epic
- Team Handsome
- Team Hooligan
- Team Metal Sonic
- Team Monsters
- Team New Nippon
- Team Q4
- Team Ragnarok
- Team Rose
- Team S.I.T. Genius
- Team Sonic
- Team Striders
- Team TRY3
- Team Ultra-Rare
- Team X
- Teamo Supremo
- Technet
- Teen Brigade
- Teen Titans
- Teen Titans West
- Teenage Mutant Ninja Turtles
- Temploids
- Terrible Trio
- Terror Inc.
- The All-New Exiles
- The Alliance
- The Angry Birds
- The Ani-Men
- The Assembly of Evil
- The Authority
- The B-Sides
- The Bad Batch
- The Battalion
- The Black Bulls
- The Blood
- The Boys
- The Cabal (Dark Illuminati)
- The Called
- The Cavalry
- The Charter
- The Chaste
- The Chiester Sisters
- The Coalition
- The Command
- The Committee
- The Consortium
- The Conspiracy
- The Corporation
- The Crew
- The Crimebusters
- The Crystal Gems
- The Dark Triad
- The Enchanters Three
- The Endless
- The Evil Enforcers
- The Fang Clan
- The Final Horsemen
- The FIRM
- The First Horsemen Of Apocalypse
- The Five
- The Flag-Smashers
- The Flight
- The Fomor
- The Force Priestesses
- The Four Horsemen
- The Garrison
- The Gatewatch
- The Gatherers
- The Gentry
- The Grail
- The Great Ring Of Arakko
- The Guardian Monsters (GMK)
- The Hand
- The Hand
- The Hands
- The Hellbent
- The Heroes Of Olympus
- The Hyperclan
- The Impossibles
- The Initiative
- The Insidious Six
- The Intruders
- The Invinci-Bros
- The Iscariots
- The Koopalings
- The Last Avengers
- The Last Horsemen Of Apocalypse
- The Light
- The Lodge
- The Manhattan Clan
- The Maniax
- The Mavericks
- The Mighty Avengers
- The Ones
- The Order
- The Order
- The Orphans
- The Outcasts
- The Outlaws
- The Outsiders
- The Pack
- The Paradise Group
- The Plumbers
- The Posse (Domino's)
- The Presence
- The Quantum Masks
- The Quiet Council
- The Runaways
- The Scout Regiment
- The Seven
- The Seven
- The Seven
- The Sisters
- The Six
- The Smash Fighters
- The Smurfs
- The Society
- The Solution
- The Spider Friends
- The Spider Society
- The Spinsterhood
- The Sportsmen
- The Squad
- The Strangers
- The Survey Corps
- The Terrifics
- The Twelve
- The Ultimate Ultimates
- The Ultimates
- The Ultra Brothers
- The Umbrella Academy
- The Web
- The Women Warriors
- THEM
- Thieves' Guild
- Third Reich
- Thor Core
- Thor Corps
- Three Mothers
- Three Pure Nobles
- Thunderbolts
- Thunderiders
- Tiger Division
- Time Luchadores
- Time Masters
- Time Variance Authority
- Titanic Three
- Titans
- Titans
- Titans East
- TNTNT
- Top 10
- Trade Federation
- Trash
- Tribe Of Artemis
- Trinity Of Sin
- Triple Threat
- Triumvirate of Terror
- Triune Understanding
- True Believers
- Tween Titans
U
- U-Foes
- U-Men
- Ultimate Fantastic Four
- Ultimate X-Men
- Ultimatum
- Ultraforce
- UltraForce
- Ultraviolet Lantern Corp
- Uncanny X-Force
- Underground
- Underground Avengers
- Undying Ones
- Unholy Three
- Uni-Mind
- Unified Thieves and Assassins Guild of New Orleans
- Union Of Justice
- United Front
- United Order
- United Order
- United States Air Force
- Unlimited Class Wrestling Federation
- Unlimited Class Wrestling Federation
- Upstarts
- Uranians
- Utopians
V
- V-Battalion
- Valar
- Valkyrior
- Vampires
- Vanguard
- Vault
- Vicious 6
- Vicious Circle
- Villainy, Inc.
- Vishanti
- Vulturions
W
- Wakandans
- Wanderers
- Warbound
- Warclan
- Warheads
- Warriors of the Great Web
- Warriors Three
- Warwolves
- Warzoons
- Watchdogs
- Watchmen
- Weapon P.R.I.M.E.
- Weapon Plus
- Weapon X
- Weather Trio
- Weathermen
- West Coast Avengers
- Wetworks
- White Lantern Corps
- White Lotus
- Wild Hunt
- Wild Pack
- Wildboys
- WildCATS
- Winter Guard
- Witches
- Wolfpack
- Wonders Of The World
- Worldwide Engineering Brigade
- Wrecking Crew
