Two on a Guillotine

Connie Stevens

Cassie / Melinda Duquesne

Dean Jones

Val Henderson

Cesar Romero

John Harley 'Duke' Duquesne

Parley Baer

Jules 'Buzzy' Sheridan

Virginia Gregg

Dolly Bast

Connie Gilchrist

Ramona Ryerdon

John Hoyt

Attorney Carl Vickers

Russell Thorson

Mr. Carmichael (uncredited)