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Character

X-Men comics

X-Men first appeared in The X-Men #1, cover-dated September 1963, from Marvel Comics, created by Stan Lee and Jack Kirby. Also the first appearance of Magneto.

First appearance
The X-Men #1
Cover date
September 1963
Publisher
Marvel Comics
Creators
Stan Lee and Jack Kirby

Graded X-Men books in the vault

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Key issueLast copy

Marvel Comics · Silver Age

X-Men #1

CBCS 0.5 · Universal Blue

Origin and first appearance of the X-Men and Magneto

(0)
$3,270
SaleKey issueLast copy

Marvel Comics · Silver Age

X-Men #1

CGC 4.5 · Universal Blue

Origin and first appearance of the X-Men and Magneto

(0)
$5,314$5,400
Key issueLast copy

Marvel Comics · Silver Age

X-Men #9

CGC 4.0 · Universal Blue

First X-Men and Avengers crossover; first appearance of Lucifer

(0)
$500
SaleKey issueLast copy

Marvel Comics · Bronze Age

X-Men #94

CGC 8.0 · Universal Blue

New X-Men begin — second appearance of Nightcrawler, Storm, Thunderbird and Colossus

(0)
$2,000$2,328
SaleKey issueLast copy

Marvel Comics · Bronze Age

X-Men #94

CGC 9.2 · Universal Blue

New X-Men begin — second appearance of Nightcrawler, Storm, Thunderbird and Colossus

(0)
$2,935$3,655
Key issueLast copy

Marvel Comics · Bronze Age

X-Men #94

CGC 9.2 · Universal Blue

New X-Men begin — second full appearance of Wolverine

(0)
$3,756
Key issueLast copy

Marvel Comics · Bronze Age

X-Men #101

CGC 9.8 · Universal Blue

Origin and first appearance of Phoenix

(0)
$5,390
Key issueLast copy

Marvel Comics · Bronze Age

X-Men #129

CGC 9.8 · Universal Blue

First appearance of Kitty Pryde, Emma Frost and Sebastian Shaw

(0)
$877

X-Men guides

First appearance, key issues and what drives the prices.

All guides →

  • Characters

    What is the first appearance of the X-Men?

    The X-Men first appeared in The X-Men #1, cover-dated September 1963, created by Stan Lee and Jack Kirby. The issue introduced Professor X and the original five — Cyclops, Marvel Girl (Jean Grey), Beast, Angel and Iceman — and their first enemy, Magneto. It shares its cover date with Avengers #1, published the same month.

    Updated Sep 14, 2026

  • Characters

    What is the first appearance of Storm? Giant-Size X-Men #1 explained

    Storm first appeared in Giant-Size X-Men #1, cover-dated May 1975, by Len Wein and Dave Cockrum — the issue that also introduced Nightcrawler, Colossus and Thunderbird and brought Wolverine, Banshee and Sunfire together as the new X-Men. The regular series resumed with X-Men #94 (August 1975), which began Chris Claremont's sixteen-year run as writer.

    Updated Sep 14, 2026

  • Characters

    What is the first appearance of Phoenix?

    Jean Grey became Phoenix in The X-Men #101, cover-dated October 1976, by Chris Claremont and Dave Cockrum, rising from Jamaica Bay after piloting a shuttle through a solar flare. Jean herself first appeared as Marvel Girl in X-Men #1 (September 1963); #101 is the first appearance of the Phoenix identity and costume. The Dark Phoenix Saga followed in X-Men #129–137 (1980).

    Updated Sep 14, 2026

  • Characters

    What is the first appearance of Kitty Pryde?

    Kitty Pryde first appeared in The X-Men #129, cover-dated January 1980, by Chris Claremont and John Byrne, as a thirteen-year-old from Deerfield, Illinois recruited by Professor X. The same issue introduced Emma Frost (the White Queen) and Sebastian Shaw of the Hellfire Club and began the Dark Phoenix Saga, which makes it one of the most important issues of the Claremont–Byrne run.

    Updated Sep 14, 2026

  • Key issues

    Giant-Size X-Men #1 vs X-Men #94: which is the key?

    Both. Giant-Size X-Men #1 (May 1975) introduces the new team — first appearances of Storm, Nightcrawler, Colossus and Thunderbird — and is the more valuable book. X-Men #94 (August 1975) is the first regular issue of the new team, the first issue written by Chris Claremont, and the start of the run that made the X-Men Marvel's best-selling franchise. Collectors treat Giant-Size #1 as the first appearance key and #94 as the first-issue key.

    Updated Sep 14, 2026