Michael Heisler

Michael 'Mike' Heisler is an American comic book writer, who got his start in the industry in the late 1980s as a letterer.

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Uncanny X-Men #255

Marvel 1989 Vol. 1
Non-Key
Mark Jewelers
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X-Factor #50

Marvel 1990 Vol. 1
Non-Key
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Todd McFarlane and Rob Liefeld cover art

Thor #413

Marvel 1990 Vol. 1
Non-Key
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Hellraiser #3

Epic 1990 Vol. 1
Non-Key
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$5
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Uncanny X-Men #257

Marvel 1990 Vol. 1
Non-Key
Newsstand
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$3
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1st appearance of Psylocke as Lady Mandarin

Debut of Psylocke's psychic knife

Debut of Jubilee costume with yellow trenchcoat and shorts in mainstream continuity

Uncanny X-Men #257

Marvel 1990 Vol. 1
Non-Key
Mark Jewelers
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1st appearance of Psylocke as Lady Mandarin

Debut of Psylocke's psychic knife

Debut of Jubilee costume with yellow trenchcoat and shorts in mainstream continuity

Marvel Graphic Novel #58

Marvel 1990 Vol. 1
Non-Key
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$17
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Thor #414

Marvel 1990 Vol. 1
Non-Key
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Nightbreed #1

Epic 1990 Vol. 1
Non-Key
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The War #4

Marvel 1990 Vol. 1
Non-Key
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Thor #416

Marvel 1990 Vol. 1
Non-Key
Mark Jewelers
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Nightbreed #2

Epic 1990 Vol. 1
Non-Key
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Thor #417

Marvel 1990 Vol. 1
Non-Key
Mark Jewelers
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1st appearance of the Red Celestial, tasked with helping to birth the Blue Celestial

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1st appearance of Gambit

⚠️ Debatable Firsts: this issue is often cited as a cameo of Gambit which would imply that the appearance is brief although he appears in 15 panels throughout the book with at least 10 instances of dialogue

This includes a full page-and-a-half interaction with Storm where she addresses him by name and refers to him as a thief (see images by tapping cover and swiping left)

Later Gambit appears in his classic suit and then again in an X-Men uniform

This issue went on sale June 19th whereas X-Men #266 went on sale July 10th

Uncanny X-Men #266 was written as if it were to be published prior to the annual

CGC recognizes this issue as a cameo appearance of Gambit and Uncanny X-Men #266 as his first full appearance

X-Men Annual #14

Marvel 1990 Vol. 1
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1st appearance of Blackout, one of the Lilin

[May 2021 - rumored that Marvel has plans for a Midnight Sons show with Blackout as the villain. This news is unconfirmed]

Nightbreed #3

Epic 1990 Vol. 1
Non-Key
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Savage Sword of Conan, The #174

Marvel 1990 Vol. 1
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Marvel Graphic Novel #62

Marvel 1990 Vol. 1
Non-Key
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$9
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Iron Man #258

Marvel 1990 Vol. 1
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Origin of the New Warriors

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Ghost Rider #3

Marvel 1990 Vol. 2
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Thor #420

Marvel 1990 Vol. 1
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Ghost Rider #4

Marvel 1990 Vol. 2
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Iron Man #259

Marvel 1990 Vol. 1
Non-Key
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Conan the Barbarian #235

Marvel 1990 Vol. 1
Non-Key
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Iron Man #259

Marvel 1990 Vol. 1
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New Mutants #92

Marvel 1990 Vol. 1
Non-Key
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Iron Man #259

Marvel 1990 Vol. 1
Non-Key
Mark Jewelers
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$3
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Thor #421

Marvel 1990 Vol. 1
Non-Key
Mark Jewelers
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New Mutants #92

Marvel 1990 Vol. 1
Non-Key
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Ghost Rider #5

Marvel 1990 Vol. 2
Non-Key
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Iron Man #260

Marvel 1990 Vol. 1
Non-Key
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Iron Man #260

Marvel 1990 Vol. 1
Non-Key
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Iron Man #260

Marvel 1990 Vol. 1
Non-Key
Mark Jewelers
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New Warriors #3

Marvel 1990 Vol. 1
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New Warriors #3

Marvel 1990 Vol. 1
Non-Key
JC Penney
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Conan the Barbarian #237

Marvel 1990 Vol. 1
Non-Key
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Captain America #378

Marvel 1990 Vol. 1
Non-Key
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Thor #425

Marvel 1990 Vol. 1
Non-Key
Mark Jewelers
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$3
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