176
APPEARANCES
71
SERIES
The X-Men #4
"The Brotherhood of Evil Mutants"
March 1964
First appearance of Scarlet Witch. Earliest catalogued appearances of Quicksilver, Toad, and Mastermind.
The 1 flagged appearance plus the most recent 40 of 176. Show all 176 →
The X-Men #4"The Brotherhood of Evil Mutants"
Mar 1964
No listings
Ultimate X-Men #70"Phoenix?: Part 2"
Jul 2006
X-Men: First Class #7"Who Wants to Date a Millionaire?"
May 2007
Ultimate X-Men #81"Cliffhangers"
Jun 2007
X-Men: First Class #2"Island X"
Sep 2007
X-Men: First Class #3"Island X: Part Two; A Buddy In Scarlet"
Oct 2007
X-Men: Legacy #209"From Genesis To Revelations, Part 2"
May 2008
X-Men: Odd Men Out #1"Odd Men Out; The New Mutants in Think Again!"
Sep 2008
X-Men Origins: Emma Frost #1"Will & Love"
Jul 2010
X-Men: Curse Of The Mutants Saga #1"X-Men a Go-Go!"
Aug 2010
X-Factor Forever #5"Collateral Damage"
Sep 2010
Avengers: The Children's Crusade #2
Nov 2010
Women of Marvel #1"Thrones; Black Magic Women; Love & Illusion"
Jan 2011
X-Men Giant-Size #1"First To Last, Part One"
Jul 2011
X-Men #12"First to Last, Part 2"
Aug 2011
X-Men #13"First To Last Part 3"
X-Men #14"First to Last, Part 4"
Sep 2011
X-Men #15"First To Last Part 5"
Avengers Origins: The Scarlet Witch & Quicksilver #1
Jan 2012
X-Factor #243"Breaking Points: Day 3"
Nov 2012
All-New X-Men #5
Mar 2013
X-Men: No More Humans #1"HC"
Jul 2014
Magneto #6
Sep 2014
Marvel Masterworks: The Uncanny X-Men #9"Volume 9"
Jan 2015
Magneto #18
Jul 2015
Generations: Phoenix & Jean Grey #1
Oct 2017
X-Men: Blue #18"Cross Time Capers Part 3"
Feb 2018
Empyre: X-Men #2"Growing Strong"
Oct 2020
Giant-Size X-Men: Fantomex #1"The World"
Hellions #9
Apr 2021
Hellions #10
May 2021
Hellions #11
Jul 2021
X-Corp #2"A Shark In the Water"
Aug 2021
X-Men: The Trial of Magneto #1"Dial M for Wanda"
Oct 2021
X-Corp #4"A Carrot On A Stick"
X-Corp #5"Closing Costs"
Nov 2021
X-Men: Days of Future Past: Doomsday #1
Sep 2023
Magneto #3"Evil Mutant, Chapter Three: The Cage!"
Dec 2023
Wolverine: Revenge #1
Oct 2024
Wolverine #11"Only a Mother"
Sep 2025
Wolverine #12"Mother and Master"
Oct 2025
Writers and artists on Mastermind's earliest appearances.
All-New X-Men
41 issues
Amazing Adventures
39 issues
14 issues
Avataars: Covenant of the Shield
3 issues
Avengers Origins: The Scarlet Witch & Quicksilver
1 issue
Avengers: The Children's Crusade
9 issues
Captain America
355 issues
Classic X-Men
45 issues
Code of Honor
4 issues
Earth X
16 issues
Empyre: X-Men
5 issues
Excalibur
126 issues
