Siryn

Siryn

Theresa Maeve Rourke Cassidy is a fictional comic book superhero appearing in books published by Marvel Comics, usually those belonging to the X-Men family of titles. She previously employed the name Siryn but later goes by the name Banshee, in honor of her late father, Sean Cassidy, who first used the alias.

Like her father, the X-Men's Banshee, Siryn is an Irish mutant who possesses a "sonic scream" capable of incapacitating and injuring an opponent's hearing and sending powerful vibrations through the air. She can use these vibrations to fly. Her name refers to the Sirens of Greek mythology.

Siryn was raised by Banshee’s cousin and arch-nemesis Black Tom Cassidy without Banshee's knowledge. By her early teens, she left Black Tom and joined the X-Men offshoots X-Force and later X-Factor.