In a battle between Nitro and the New Warriors, Nitro exploded, seemingly killing the entire team and a huge number of civilians (including 60 school children nearby). This led the United States government to introduce a "Living Weapon of Mass Destruction" registry for all super-powered individuals. Most heroes were divided on the issue, and a Civil War ensued within the Avengers.
Characters:[]
Confirmed Proponents of Registration:[]
Registered Heroes and Villains:[]
- Natasha Romanoff/Black Widow (Vanessa Marshall)
- Doc Samson (Cam Clarke)
- Tony Stark/Iron Man (Eric Loomis)
- Reed Richards/Mr. Fantastic (Dee Bradley Baker)
- Carol Danvers/Ms. Marvel (Jennifer Hale)
- A.G. Bell/Phone Ranger (Daniel Riordan)
- Jennifer Walters/She-Hulk (Ashley Tisdale)
- Greer Grant/Tigra (Alyson Stoner)
- Thor Clone/Ragnarok (Rick D. Wasserman)
- Janet Van Dyne/Wasp (Colleen O’Shaughnessey)
- Hank Pym/Yellowjacket (Wally Wingert)
- Simon Williams/Wonder Man (Phil LaMarr)
- Lucas Bishop (Kevin Michael Richardson)
- Scott Wright/Micromax (Max Mittleman)
- Ruph Bat-Seraph/Sabra (Jim Meskimen)
- Robert Baldwin/Penance (Peter Dobson) - previously Speedball, registered
- Melissa Gold/Songbird (Gabrielle Union)
- Great Lakes Champions:
- Doreen Green/Squirrel Girl (Nancy Cartwright)
- Tippy Joe (Frank Welker)
- Craig Hollis/Mr. Immortal (Marc Worden)
- Val Ventura/Flatman (Adrian Padsar))
- Ashley Crawford/Big Bertha (Diane DeLano)
- DeMarr Davis/Doorman (Jason Spiziak)
- Doreen Green/Squirrel Girl (Nancy Cartwright)
- Robert Reynolds/Sentry (Crispin Freeman)
- Patricia Walker/Hellcat (Hynden Walch)
- Thor Girl (Andrea Baker)
- Matthew Hawk/Two-Gun Kid (Phil Morris)
- Anya Corazon/Araña (Grey Griffin)
- John Jameson (Adam Baldwin)
- Cassie Lang/Stature (Colleen O'Shaughnessey)
- Kyle Richmond/Nighthawk (\Adam Adamwaite)
S.H.I.E.L.D. Forces:[]
- Director Maria Hill (Kari Wuhrer)
- Dum Dum Dugan (John DiMaggio)
- Sharon Carter/Agent 13 (Danika McKeller)
- Agent Whitman (Wally Kurth) - sent by Iron Man to capture Luke Cage
- Gabe Jones (Diedrich Bader)
- Superhuman Restraint Unit/Cape-Killers
Enforcers:[]
- Wade Wilson/Deadpool (Nolan North)
- Eric Brooks/Blade (T.C. Carson)
- Heroes for Hire:
- Colleen Wing (Kari Wahlgren)
- Misty Knight (Anika Noni Rose)
- Maria Vasquez/Tarantula II (Maria Canals)
- Shang-Chi (Daniel Wu)
- Buck Mitty/Humbug (Billy West)
- Orka (David Boat)
- Felicia Hardy/Black Cat (Jessica DiCicco)
- Paul Dennings/Paladin (Greg Ellis)
- Thunderbolts:
- ???
- Noh-Varr (Andre Braugher)
Detained and recruited heroes and villains:[]
- Ajaxis (Peter Dobson) - villain, a member of the Thunderbolts Army
- Peter van Sante/Aqueduct (Liem O'Brien) - villain, a member of the Thunderbolts Army
- Marco Scarlotti/Whiplash (Vincent Tong) - villain
- Eric Conroy/Bloodstrike (Peter Lurie) - villain, a member of the Thunderbolts Army
- Batroc the Leaper (Rene Auberjoinis)
- The Beetles: members of the Thunderbolts Army
- Joaquim Robichaux (Carlos Alazraqui)
- Elizabeth Quinn (Danika McKeller)
- Gary Quinn (Dee Bradley Baker)
- Fred Myers/Boomerang (Steven Blum) - a member of the Thunderbolts Army
- Lester/Bullseye (Jon Curry) - a member of the Thunderbolts Army
- Quincy McElver/Bushmaster (David Oyelewo) - a member of the Thunderbolts Army
- Otto Octavius/Doctor Octopus (Corey Burton) - a member of the Thunderbolts Army
- Eddie Lavell/Eel (Neil Kaplan)
- Norman Osborn/Green Goblin (Kevin Michael Richardson) - a member of the Thunderbolts Army
- Melina Vostokoff/Iron Maiden (E.G. Dailey) - a member of the Thunderbolts Army
- Steven Levins/Jack O'Lantern (Marc Worden) - a member of the Thunderbolts Army
- Jonathan Powers/Jester (Piotr Michel)
- Simon Maddicks/Killer Shrike (Robin Atkin Downes)
- Yuriko Oyama/Lady Deathstrike (Kelly Hu) - a member of the Thunderbolts Army
- Mariano Lopez/Machete (Danny Trejo) - a member of the Thunderbolts Army
- Mongoose (James Sie) - a member of the Thunderbolts Army
- Grom/Over-Mind (Richard McGonagle) - a member of the Thunderbolts Army
- Raymond Bloch/Ox (Bill Fagerbakke) - a member of the Thunderbolts Army
- Alex Gentry/Porcupine (Ted Levin)
- Psionex:
- Heidi P. Franklin/Pretty Persuasions (???)
- James Sharp/Coronary (???)
- Thomas Sorenson/Mathemanic (???)
- Dwight Hubbard/Impulse (???)
- Quicksand (???) - Asian female, a member of the Thunderbolts Army
- SJ3RX/Red Ronin (???) - a member of the Thunderbolts Army
- Ebeneezer Laughton/Scarecrow (???) - a member of the Thunderbolts Army
- Serpent Society:
- Roland Burroughs/Death Adder ()
- Klaus Voorhees/King Cobra (James C. Mathis III) - also a member of the Thunderbolts Army
- Gustav Krueger/Rattler (Chris Cox) - also a member of the Thunderbolts Army
- Min Li Ng/Silk Fever (???) - a member of the Thunderbolts Army
- Jalome Beacher/Slyde (???) - a member of the Thunderbolts Army
- Conrad Mack/Smiling Tiger (???) - a member of the Thunderbolts Army
- Snake Marston (???) - a member of the Thunderbolts Army
- Tony Masters/Taskmaster (???) - a member of the Thunderbolts Army
- Arnold Paffenroth/Tatterdemalion (???)
- Drew Daniels/Texas Twister (???)
- U-Foes:
- Simon Utrecht/Vector (Cam Clarke) - also a member of the Thunderbolts Army
- Michael Steel/Ironclad () - also a member of the Thunderbolts Army
- Ann Darnell/Vapor (Colleen O'Shaughnessey) - also a member of the Thunderbolts Army
- Jimmy Darnell/X-Ray () - also a member of the Thunderbolts Army
- Milos Masaryk/Unicorn (???)
- Eddie Brock/Venom (???) - a member of the Thunderbolts Army
- Edward Wheelan/Vermin (???)
- Whiplash (???) - the female version and a member of the Thunderbolts Army
- Dave Cannon/Whirlwind (???) - a member of the Thunderbolts Army
- Wrecking Crew:
- Dirk Garthwaite/Wrecker (JB Blanc)
- Brian Calusky/Piledriver (Nolan North)
- Henry Camp/Bulldozer (James C. Mathis III)
- Elliot Franklin/Thunderball (Gary Anthony Williams)
- Maximillian Zaran (???) - a member of the Thunderbolts Army
Major Government Supporters:[]
- Dallas Riordan/Vantage (???)
- Henry Peter Gyrich (Jim Ward)
- Valerie Cooper (???)
Major Civillian Supporters:[]
- Happy Hogan (???)
- J. Jonah Jameson (J.K. Simmons)
- Miriam Sharpe (???)
- Sprite (???) - trickster from Olympus
Opponents of Registration:[]
The Secret Avengers:[]
- Julia Carpenter/Arachne (???) - formerly upheld the act
- Nathaniel Summers/Cable (???)
- Luke Cage (Christopher B. Duncan)
- Steve Rogers/Captain America (Brian Bloom)
- Piotr Rasputin/Colossus (Nolan North)
- Scott Summers/Cyclops (Nolan North)
- Alex Summers/Havok (Nolan North)
- Rachel Leighton/Diamondback (???)
- T'Challa/Black Panther (James C. Mathis III)
- Ororo Munroe/Storm (Susan Dalian)
- Tyrone Johnson/Cloak (???)
- Tandy Bowen/Dagger (???)
- Jessica Drew/Spider-Woman (???)
- Matt Murdock/Daredevil (???)
- Danny Rand/Iron Fist (Loren Lester)
- Sam Wilson/Falcon (Lance Reddick)
- James Howlett Logan/Wolverine (Steve Blum)
- Bill Foster/Goliath (???)
- Jane Foster (Kari Wahlgren)
- Nick Fury (Alex Desert)
- Hercules (???)
- Linda Carter/Night Nurse (???)
- Young Avengers:
- Eli Bradley/Patriot (Khary Payton)
- Billy Kaplan/Wiccan (Jesse McCartney)
- Teddy Altman/Hulkling (Nolan North)
- Cassie Lang/Stature (Colleen O'Shaughnessey) - later registered
- Kate Bishop/Hawkeye (Stephanie Lemelin)
- Thomas Shepherd/Speed (Jason Spisak)
- Vision (Peter Jessop)
- Tsu-Zana/Ultragirl (???)
- Delroy Garrett, Jr./Triathlon (???)
- Miguel Santos/Living Lightning (???)
- Susan Storm/Invisible Woman (Erin Torpey) - formerly upheld the act as a member of the Fantastic Four
- Johnny Storm/Human Torch (David Kaufman) - formerly upheld the act as a member of the Fantastic Four
- Silhoutte Cord (???)
- Bonita Juarez/Firebird (???)
- X-51/Machine Man (???)
- Monica Rambeau/Photon (???)
- Peter Parker/Spider-Man (Josh Keaton) - formerly supported the act
- Vance Astrovik/Justice (???)
- Walter Newell/Stingray (???)
Miscellaneous heroes and villains:[]
- Lemar Hoskins/Battlestar (???)
- Eric Savin/Coldblood (???)
- Jack Harrison/Jack Flagg (???)
- Johnny Blaze/Ghost Rider (???)
- Robin Braxton/Gladiatrix (???) and her resistance cell
- Obax Majid/Lightbright (???)
- N'Kantu the Living Mummy (???)
- Sarah Vale/Network (???)
- Richard Gilmore/Prodigy (???)
- Hobie Brown/Prowler (???)
- Maximillian Coleridge/Shroud (???)
- James Bourne/Solo (???)
- Robert Baldwin/Speedball (found alive, registered change into Penance)
- Gordon Thomas/Typeface (???)
- Jonathan Bryant/Digitek (???)
- Thomas Samuels/Lectronn (???)
- Maria de Guadalupe Santiago/Silverclaw (???)
Unregistered heroes and villains:[]
- Deborah Fields/Debrii (???)
- Angelica Jones/Firestar (???)
- Jessica Jones (???)
- Frank Castle/Punisher (???)
- Erik Lehnsherr/Magneto (Tom Kane)
- Pietro Maximoff/Quicksilver (Mark Hildreth)
- Elvin Haliday/Rage (???)
- Runaways:
- Alex Wilder (???)
- Nico Minoru (???)
- Karolina Dean (???)
- Molly Hayes (???)
- Chase Stein (???)
- Gert Yorkes (???)
- Old Lace (???)
- Steven Harmon/Slapstick (???)
- Stanley Johnson/Thunderclap (???)
- Rina Patel/Timeslip (???)
- Sersei (???)
- Marc Spector/Moon Knight (???)
- Howard the Duck (???)
- Bucky Barnes/Winter Soldier (Jon Curry)
Registered Opponents:[]
- Julia Carpenter/Arachne (???) - formerly upheld the act, now a Secret Avenger
- Susan Storm/Invisible Woman (Erin Torpey) - formerly upheld the act, now a Secret Avenger
- Peter Parker/Spider-Man (Josh Keaton) - formerly upheld the act, now a Secret Avenger
- X-Factor Investigations:
- Jamie Madrox/Multiple Man (Crispin Freeman)
- Guido Carosella/Strong Guy (???)
- Rahne Sinclair/Wolfsbane (???)
- 198:
- Maximus Jensen/Mammomax
- Erg
- Fever Pitch
- John Zander/Jazz
- Xi'an Coy Manh/Karma
- Lorelei Travis
- Peter Quinn/Peepers
- Mortimer Toynbee/Toad
- Inez Temple/Outlaw
- Johnny Dee
- Sack
- Sally Blevins/Skids
- Philippa Sontag/Arclight
- Caliban
- Leech
- Han, Chang, Lin, Sun, and Ho Tao-Yu/Collective Man
- Lillian Crawley/Diamond Li
- Beautiful Dreamer
- Manuel de la Rocha/Empath
- Several unidentified/unidentifiable mutants
Supervillain opponents:[]
- Matthew Gilden/Goldbug (???)
- Edger Plunder/Plunderer (???)
- Wilson Fisk/Kingpin (???)
- Robert Hunter/Nitro (Liam O'Brien)
Major civilian opponents:[]
- Citizens of Harlem, New York
- Neil Crawford (???)
- Sally Floyd (???)
- Yancy Street Gang
Foreign opponents:[]
- Blackbolt - Inhuman King of the Royal Family
- Namor
Neutral parties:[]
- Stephen Strange/Doctor Strange (???)
- Ben Grimm/Thing (Clancy Brown) - formerly upheld the act as a member of the Fantastic Four)
- Ben Urich (???)
- Thena (???) and most of the other Eternals
- X-Men (publicly):
- Charles Xavier/Professor X (Jim Ward)
- Jean Grey (Jennifer Hale)
- Anna-Marie D'Ancanto/Rogue (Kieren van din Blink)
- Kurt Wagner/Nightcrawler (Liam O'Brien)
- Hank McCoy/Beast (Fred Tatasciore)
- Kitty Pryde/Shadowcat (Danielle Judovits)
- Bobby Drakes/Iceman (Yuri Lowenthal)
- Jonathon Silvercloud/Forge (Roger Craig Smith)
- Remy LaBeau/Gambit (Phil LaMarr)
- Richard Rider/Nova (???)
- Thor (Rick D. Wasserman)
Casualties:[]
- 600 residents of Stamford, CT
- Roberto Velasquez/Bantam (???) - killed in a fight with Thunderclap
- Bill Foster/Goliath (???) - killed in a fight with Thor
- Cee (???) of the Yancy Street Gang
- Ralph Roberts/Cobalt Man (???) - killed at Stamford
- Kateri Deseronto/Coldheart - killed at Stamford
- John Fernandez (???)
- Matthew Gilden/Goldbug (???) - killed by Punisher
- Johnny Storm/Human Torch (David Kaufman) - severely wounded by anti-hero protestors
- Zachary Smith, Jr./Microbe (???) - killed at Stamford
- Namorita Printiss (???) - killed at Stamford
- Edger Plunder/Plunderer (???) - killed by Punisher
- Sheila Blake/Speedfreak (???) - killed at Stamford
- Jalome Beacher/Slyde (???) - killed by Jack Dio/Underworld
- Dwayne Taylor/Night Thrasher (???) - killed at Stamford
- Jonathan Powers/Jester (???) - killed by Punisher
- Steven Levins/Jack o' Lantern (???) - killed by Punisher
- Superhuman Restraint Unit
Episodes:[]
Trivia:[]
- The season takes plot elements from Marvel: Ultimate Alliance 2 and Captain America: Civil War.