Revenge of the Creature— Full Cast

John Agar

as Prof. Clete Ferguson

Lori Nelson

as Helen Dobson

John Bromfield

as Joe Hayes

Nestor Paiva

as Captain Lucas

Grandon Rhodes

as Jackson Foster

Dave Willock

as Lou Gibson

Robert B. Williams

as George Johnson

Charles Cane

as Police Captain

Loretta Agar

as Woman on Boat (uncredited)

Bill Baldwin

as Patrol Boat Dispatcher (voice / uncredited)

Jere Beery

as Photographer (uncredited)

Ricou Browning

as The Gill Man (in water) / Lab Technician (uncredited)

Diane DeLaire

as Miss Abbott (uncredited)

Clint Eastwood

as Jennings (uncredited)