Key Issue Comics

First appearance of Spider-Man. Earliest catalogued appearances of Aunt May, Flash Thompson, Liz Allan, and 2 more.

Wolverine: First full appearance. Cameo on the last page of #180.

First appearances of Captain America and Red Skull.

First appearance of Iron Man.

First appearance of the Mighty Thor. Earliest catalogued appearance of Korg.

First appearances of Thing, Human Torch, Mister Fantastic, and 1 more. Earliest catalogued appearances of Mole Man and Giganto (Mole Man).

First appearances of Cyclops, Beast, Jean Grey, and 3 more. Earliest catalogued appearance of Warren Worthington III.

First appearances of Storm, Colossus, and Nightcrawler. Earliest catalogued appearances of Magik, Thunderbird (John Proudstar), and Krakoa.

First appearance of Doctor Strange. Earliest catalogued appearances of Wong, Nightmare, Ancient One, and 1 more.

First appearance of Hawkeye.

First appearance of Daredevil. Earliest catalogued appearances of Foggy Nelson and Karen Page.

First appearance of Namor. Earliest catalogued appearances of Jim Hammond, Dorma, Angel, and 5 more.

Mary Jane Watson: First full appearance. Her face is deliberately hidden in #25 and #38.

First appearance of Nick Fury. Earliest catalogued appearances of Dum Dum Dugan, Gabriel Jones, Izzy Cohen, and 4 more.

First appearance of Carol Danvers. She becomes Ms. Marvel in Ms. Marvel #1.

First appearance of Scarlet Witch. Earliest catalogued appearances of Quicksilver, Toad, and Mastermind.

First appearance of Emma Frost. The series was still titled X-Men at #129; it became Uncanny X-Men later. Earliest catalogued appearances of Kitty Pryde and Sebastian Shaw.

First appearance of Vision.

First appearance of Rogue, then a member of the Brotherhood. Earliest catalogued appearance of Madelyne Pryor.

First appearance of Hank Pym. He returns as Ant-Man in Tales to Astonish #35.

First appearance of Doctor Doom.

First appearance of Wasp.

First appearance of Black Panther.

First appearance of Black Widow (Natasha Romanova).

First appearance of J. Jonah Jameson. Earliest catalogued appearances of John Jameson and Chameleon.

Earliest catalogued appearance of She-Hulk.

First appearance of Luke Cage. Earliest catalogued appearances of Doctor Noah Burnstein, Willis Stryker, Billy Bob Rackham, and 2 more.

First appearance of Punisher.

First full appearance of Venom (Eddie Brock). The symbiote itself debuts in ASM #252.

First appearance of Deadpool. Earliest catalogued appearances of Domino and Gideon.

First appearance of Gambit.

Earliest catalogued appearance of Conan.

Earliest catalogued appearances of Falcon and Redwing (Falcon).

Earliest catalogued appearances of Betsy Braddock and Meggan.

First appearances of Silver Surfer and Galactus.

Norman Osborn: First appearance as the Green Goblin.

First appearance of Loki. Earliest catalogued appearances of Odin (Marvel), Balder (Marvel), Heimdall, and 1 more.

First appearance of Iron Fist. Earliest catalogued appearances of Yu-Ti, Wendell Rand, Heather Rand, and 1 more.

First appearance of Cable. Infant Nathan Summers appears earlier.

Earliest catalogued appearances of Cannonball, Sunspot, Wolfsbane, and 2 more.

Earliest catalogued appearances of Havok and Living Monolith.

First appearance of Kingpin.

Earliest catalogued appearance of Wonder Man.

First appearance of Sabretooth.

Earliest catalogued appearance of Spider-Woman (Drew).

Earliest catalogued appearances of Bucky Barnes, Black Marvel, and Sgt. Mike Duffy.

First appearance of Doctor Octopus.