Siryn
Marvel- Alias
- Banshee
- Universes
- Universe X, MC2, Ultimate
- Created by
- Chris ClaremontSteve Leialoha
- Appearances
- 6 issues
- Series
- 2
Theresa Cassidy is a mutant with sonic-based powers inherited from her father, Sean Cassidy a.k.a. Banshee.
Theresa Cassidy is a mutant with sonic-based powers inherited from her father, Sean Cassidy a.k.a. Banshee.