Banshee
Sean Cassidy
Created by Roy Thomas & Werner Roth
First Appearance
The X-Men #28 (1967)
Appearances
420
Primary Team
X-Men
Debut Era
1960s
An Irish mutant whose sonic scream can shatter steel, enable flight, and disorient enemies. Sean Cassidy was a seasoned Interpol agent before joining the X-Men, bringing maturity and experience to the team. He later co-founded Generation X with Emma Frost, mentoring the next generation of mutants.
Appearances Over Time
Series
Most Appearances By Series
Generation X (1994) 73 issues
The Uncanny X-Men (1981) 55 issues
The X-Men (1963) 49 issues
Classic X-Men (1986) 44 issues
X-Men (1991) 20 issues
Uncanny X-Men (2019) 13 issues
X-Force (1991) 9 issues
Uncanny X-Men: First Class (2009) 9 issues
X-Men: Legacy (2008) 8 issues
X-Men Unlimited (1993) 8 issues
Events
Event Participation
Onslaught (1996) 2/31
Necrosha (2009) 4/13
Age of X (2011) 1/6
HoX / PoX (2019) 1/12
X of Swords (2020) 3/23
First Appearance
The X-Men #28
1967
First Appearance
The X-Men #28
January 1967