Roy Morton

as Joe Corey

Tommy Kirk

as Lt. Cross

Arne Warde

as Sgt. Grimaldi

John Carradine

as Dr. Howard Vanard

Regina Carrol

as Susan Vanard

Kent Taylor

as Elton Corey

Tacey Robbins

as Linda Clarke

Richard Smedley

as Akro the Zombie

Joey Benson

as Sgt. Frank Ward

Kirk Duncan

as David Clarke

K.K. Riddle

as Nancy Clarke

John Talbert

as Curtis, a thug

Lyle Felice

as Vito, gang boss

John Armond

as Nick

Tanya Maree

as Vicky

Barney Gelfan

as Detective

Jennifer Bishop

as Dr. Vanard's Nurse (uncredited)