Who Is Siryn? Origin, Powers and Key Facts

Siryn is a Marvel comic book character, the alter ego of Theresa Maeve Rourke Cassidy, with over 1,533 comic issue appearances. Theresa Cassidy is a mutant with sonic-based powers inherited from her father, Sean Cassidy a.k.a. Banshee. In honor and memory of her father, she took the name of Banshee.

Who is Siryn?

Origin Siryn Theresa Cassidy was born to Sean Cassidy , the first Banshee, and Maeve Rourke while Sean was away on a mission for INTERPOL. Not long after Theresa's birth, Maeve was killed by a bomb blast and young Theresa was taken in and cared for by her uncle, Thomas Cassidy , a.k.a. Black Tom. When Sean finally returned home from his mission to find Maeve dead, he directed his anger toward his brother Tom for not looking after her, attacking him and breaking his leg. Out of spite, Tom never told Sean about his daughter, allowing Sean to believe that Theresa had died with her mother.Tom decided to raise his niece on his own. As time went by, Tom became involved in increasingly dangerous criminal activities and, for her protection, shipped the twelve-year-old Theresa off to St. Elizabeth's Boarding School. When she was fifteen, she found out that Black Tom had been arrested by INTERPOL agents.

Key facts

Siryn is of mutant origin and first appeared in "Who Am I?". The character is published by Marvel. With 1,533 recorded issue appearances, Siryn ranks among the most featured characters in comics.