BOOM-BOOM

Secret Wars II #5"Despair!"

Earliest catalogued appearance of Boom-Boom.

Nov 1985

No listings

X-Factor #11"Redemption!"

Earliest catalogued appearance of War (Kieros).

Dec 1986

No listings

X-Factor #12"Boom Boom Boom!"

Earliest catalogued appearance of Famine (Rolfson).

Jan 1987

No listings

X-Factor #13"Ghosts!"

Feb 1987

No listings

X-Factor #14"The Mutant Program!"

Mar 1987

No listings

Marvel Age #48

Earliest catalogued appearances of Ariel and Chance (Fallen Angels).

Mar 1987

No listings

X-Factor #15"Whose Death Is This Anyway?"

Apr 1987

No listings

X-Factor #16"Playing With Fire!"

May 1987

No listings

X-Factor #17"Die, Mutants, Die!"

Earliest catalogued appearances of Rictor and Ship.

Jun 1987

No listings

Fallen Angels #3

Jun 1987

No listings

Fallen Angels #4

Jul 1987

No listings

Fallen Angels #5

Aug 1987

No listings

Fallen Angels #6

Sep 1987

No listings

Fallen Angels #7

Oct 1987

No listings

X-Factor #22"If I Should Die......."

Nov 1987

No listings

Fallen Angels #8

Nov 1987

No listings

X-Factor #23"You Say You Want Some Evolution"

Dec 1987

No listings

X-Factor #27"Gifts"

Apr 1988

No listings

X-Factor #28"Countdown"

May 1988

No listings

X-Factor #29"Fame!"

Jun 1988

No listings

X-Factor #30"Kiss Of Death"

Earliest catalogued appearance of Nanny.

Jul 1988

No listings

X-Factor #31"Kiss Off!"

Earliest catalogued appearance of Orphan Maker.

Aug 1988

No listings

X-Factor Annual #3"Unnatural Selection"

Earliest catalogued appearance of Jonathan Drew.

Aug 1988

No listings

X-Factor #32"The Carbon Copy Avengers"

Earliest catalogued appearance of N'astirh.

Sep 1988

No listings

X-Factor #33"For All The World To See"

Oct 1988

No listings

X-Terminators #1"Invasion of the Baby-Snatchers"

Earliest catalogued appearance of Wiz Kid.

Oct 1988

No listings

X-Terminators #2"Speed Demon"

Earliest catalogued appearance of Face.

Nov 1988

No listings

X-Terminators #3"Guess Who's Coming to Dinner?"

Dec 1988

No listings

X-Terminators #4"Finale!"

Jan 1989

No listings

The New Mutants #72"Demon Reign"

Feb 1989

No listings

The New Mutants #73"The Gift"

Mar 1989

No listings

The New Mutants #74"The Right Stuff"

Apr 1989

No listings

X-Factor #40"Dust to Dust"

Earliest catalogued appearance of Alchemy.

May 1989

No listings

The Official Handbook of the Marvel Universe #1"Adversary to Chameleon"

May 1989

No listings

The New Mutants #76"Splash!"

Jun 1989

No listings

X-Factor #41"Golden Boy!"

Jun 1989

No listings

The New Mutants #77"Strange!"

Jul 1989

No listings

The Official Handbook of the Marvel Universe #3"Eon to Hulk"

Earliest catalogued appearances of Phillip Moreau, Pipeline, and David Moreau.

Jul 1989

No listings

The New Mutants #78"Let's Make A Deal"

Aug 1989

No listings

The New Mutants #79"Asgard"

Sep 1989

No listings

The New Mutants #80"Curse of the Valkyries"

Oct 1989

No listings

X-Factor Annual #4"I Must Go Down To The Sea Again"

Oct 1989

No listings

The New Mutants Annual #5

Oct 1989

No listings

The New Mutants #82"The Road to Hel"

Nov 1989

No listings

Fantastic Four Annual #22"For Crown and Conquest"

Earliest catalogued appearance of The Eel.

Nov 1989

No listings

The New Mutants #83"The Quick and The Dead"

Dec 1989

No listings

The New Mutants #84"The Swords Edge"

Dec 1989

No listings

The New Mutants #85"The Killing Stroke"

Jan 1990

No listings

The New Mutants #86"Bang! You’re Dead!"

Earliest catalogued appearances of Zero, Reaper (Marvel), Wildside, and 1 more.

Feb 1990

No listings

The New Mutants #87"A Show of Power"

First appearance of Cable. Infant Nathan Summers appears earlier.

Mar 1990

No listings

The New Mutants #88"The Great Escape"

Apr 1990

No listings

Marvel Fanfare #50"If I had the Wings of an Angel..."

Apr 1990

No listings

The New Mutants #89"The Gift"

May 1990

No listings

The New Mutants #90"To Hunt the Hunter"

Jun 1990

No listings

The New Mutants #91"Prey for the Living"

Jul 1990

No listings

What The--?! #8

Jul 1990

No listings

The New Mutants #92"When The Carnival Comes To Town"

Aug 1990

No listings

X-Factor Annual #5"Days of Future Present (Part 2):"

Earliest catalogued appearance of Ahab.

Aug 1990

No listings

X-Men Annual #14"Days of Future Present Part 4: You Must Remember This"

Aug 1990

No listings

The New Mutants Annual #6

Aug 1990

No listings

The New Mutants #93"Madripoor"

Sep 1990

No listings

The New Mutants #94"Lethal Weapons"

Oct 1990

No listings

The New Mutants #95"X-Tinction Agenda (Part 2): Shell Game"

Nov 1990

No listings

X-Factor #60"X-Tinction Agenda (Part 3): Brotherhood"

Nov 1990

No listings

The Uncanny X-Men #270"The X-Tinction Agenda: First Strike"

Nov 1990

No listings

The New Mutants #96"X-Tinction Agenda (Part 5): United We Stand"

Dec 1990

No listings

X-Factor #61"X-Tinction Agenda (Part 6): Betrayal"

Dec 1990

No listings

The Uncanny X-Men #271"The X-Tinction Agenda (Part 4): Flashpoint!"

Dec 1990

No listings

The New Mutants #97"X-Tinction Agenda (Part 8): War"

Jan 1991

No listings

X-Factor #62"X-Tinction Agenda (Part 9): Capital Punishment"

Jan 1991

No listings

The Uncanny X-Men #272"The X-Tinction Agenda (Part 7): Capital Crimes"

Jan 1991

No listings

The New Mutants #98"The Beginning of the End Part One"

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

Feb 1991

No listings

The Uncanny X-Men #273"Too Many Mutants"

Feb 1991

No listings

The New Mutants #99"The Beginning of the End Part Two"

Earliest catalogued appearances of Shatterstar and Feral.

Mar 1991

No listings

The New Mutants #100"The End of the Beginning"

Apr 1991

No listings

What If...? #25

May 1991

No listings

The New Warriors Annual #1

Earliest catalogued appearance of Copycat.

Jul 1991

No listings

X-Force #1"A Force To Be Reckoned With"

Earliest catalogued appearances of G.W. Bridge, Tempo, Forearm, and 1 more.

Aug 1991

No listings

The New Mutants Annual #7

Aug 1991

No listings

X-Force #2"The Blood Hunters !"

Earliest catalogued appearance of Garrison Kane.

Sep 1991

No listings

X-Men Annual #15"Queens of Sacrifice"

Sep 1991

No listings

X-Factor Annual #6"King of Pain"

Oct 1991

No listings

Spider-Man #16"Sabotage X-Over, Part 1"

Nov 1991

No listings

X-Force #5"Under the Magnifying Glass"

Dec 1991

No listings

X-Force #6"Under the Gun"

Earliest catalogued appearances of Phantazia and Thornn (Morlock).

Jan 1992

No listings

X-Force #7"Under the Knife"

Feb 1992

No listings

X-Force #8"Flashed Before My Eyes"

Earliest catalogued appearance of Hammer (Marvel).

Mar 1992

No listings

X-Force #9"Underground and Over the Top"

Apr 1992

No listings

X-Force #10"Answers (and Questions)"

Earliest catalogued appearance of Absalom.

May 1992

No listings

What If...? #37

May 1992

No listings

X-Force #11"Friendly Reminders"

Jun 1992

No listings

X-Force #12"Traitors to the Cause"

Earliest catalogued appearance of Crule.

Jul 1992

No listings

X-Force #13"Everything Hits the Fan"

Aug 1992

No listings

X-Force #14"Payback!"

Sep 1992

No listings

What The--?! #21

Earliest catalogued appearance of Frankenstein, Jr..

Sep 1992

No listings

X-Force #15"To the Pain"

Oct 1992

No listings

X-Factor #84"X-Cutioner's Song Part Two: Tough Love"

Nov 1992

No listings

X-Force #16"X-Cutioner's Song Part 4: Jacklighting"

Nov 1992

No listings

The Uncanny X-Men #294"X-Cutioner's Song Part One: The Overture"

Nov 1992

No listings

X-Men #14"X-Cutioner's Song Part 3: Fingers on the Trigger"

Earliest catalogued appearance of Foxbat.

Nov 1992

No listings