G
- Gah Lak Tus
- Gallowglass
- Gambit (LeBeau, Remy) - dead
- Garrison Kane
- Geldoff
- Ghost Rider
- Ghostware
- Giant Man / Ant Man / Yellowjacket (Pym, Henry "Hank") - dead
- Giant Man (Scott Lang)
- Gladiator (unknown)
- Glenn Talbot
- Green Goblin (Osborn, Norman) - dead
- Gorgon
- Grass Hopper
- Grizzly
- Gregory Stark - dead
- Gwen Stacy - dead
- Gwen Stacy (clone)/Carnage
Read more about this topic: List Of Ultimate Marvel Characters