Fin
Fin Fang Foom (I)
Fin Fang Foom (II) (Anima)

Gender: ♂
Alternate version of: Fin Fang Foom (I)
Universe/Dimension/Timeline: Marvel Animaverse

Features
Marvel Action Hour, Featuring Iron Man 5.FT

Fin Fang Four
Finesse (Jeanne Foucault)
Fire Knives

Gender: ♀
Member of: Mongrels

Firearm (Earth-93060)
Firearms

Gender: ♂
Member of: New Initiative agents

Firebird (Bonita Juarez)
Firebrand (Russell Broxtel)
Firebrand (Richard L. Dennison)

Gender: ♂

Features
Iron Manual Mark 3 1.FT

Firebrand (Gary Gilbert)
Fire-Eater (Tomas Ramirez)
Firefall (Karas)

Member of: Spaceknights (I)

Firefrost (Shareen)

Gender: ♀
Partner(s): Ebon Seeker (Xanth)

Firelight
Firelord (Pyreus Kril)
Firemaiden

Gender: ♀
Alternate version of: Firebird (Bonita Juarez)
Member of: Morgana Le Fey's Alternate Avengers

Firepower (Jack Taggert)

Gender: ♂

Features
All-New Iron Manual 1.FT

Firestar (Angelica Jones)
Firestar (Angelica Jones) (Earth-99062)
Firestar (II) (Earth-1610)

Gender: ♀
Alternate version of: Firestar (Angelica Jones)
Universe/Dimension/Timeline: Earth-1610 (Ultimate)

Firestrike

Gender: ♂
Member of: Heavy Mettle

Firm
First Fallen
First Host of the Celestials
First Line
Richard Fisk
Vanessa Fisk
Leo Fitz
Trevor Fitzroy
Five Lights
Fixer (Paul Norbert Ebersol)
Fixer (Roscoe Sweeny)
Flag-Smasher
Flaidermaus

Individual of: Inhumans (I)

Flame (Hrinmeer)

Gender: ♂

Features
Thor: Asgard's Avenger 1.FT

Flame (Daniel Springer)
Flap Flipflop (Comedy)

Universe/Dimension/Timeline: Comedyverse

Main
Kid Komics • Kid Movie Komics 1

Flashback (Gardner Monroe)
Flashfire

Gender: ♂
Member of: Imperial Guard of the Shi'ar

Flatman (Val Ventura)
Flavius

Gender: ♂
Individual of: Cat People

Flaw
Flb'dbi
Fleshtones
Flex (Adrian Corbo)
Flexo the Rubber Man
Flighty Revengers
Flintstone Kids

Universe/Dimension/Timeline: Licensverse

Flintstones
Flood
Sally Floyd
Flubber

Individual of: Mutants
Student(s) at/of: Xavier Institute for Higher Learning

Flux (Dennis Sykes)

Gender: ♂

Features
Avengers: Roll Call 1.FT

Flux (Benjamin Tibbetts)
Fly (Richard Deacon)
Flying Carpet

Member of: S.H.E.

Flying Dutchman (Joost van Straaten)
Flying Flame (Benjamin Ruff)