Sean Cassidy

Sean Cassidy aka Banshee is a mutant with the ability of superhumanly powerful lungs, throat, and vocal cords could produce a sonic scream for various effects, in concert with limited, reflexive psionic powers which directed his sonic vibrations. He could hover or fly at the speed of sound.

X-Men Origins: Wolverine
He makes a brief cameo as a prisoner of William Stryker in his mutant testing facility on Three-Mile Island. He, along with the rest of the incarcerated mutants (Quicksilver, Emma Frost and Cyclops), escape with the help of Professor X.

X2: X-Men United
His name, along with his daughter's, appears on a list of names Mystique scrolls through on Stryker's computer while looking for Magneto's file.

Relationships

 * Theresa Cassidy - Daughter
 * Black Tom Cassidy - Cousin

Trivia

 * In the comics, Banshee is from Ireland, in the film Cassidy is American.

Appearances/Actors

 * Canon (3 films)
 * X-Men: First Class - Caleb Landry Jones
 * X-Men Origins: Wolverine (First appearance) - Uncredited
 * X2: X-Men United - (Name Only)