John Loder

Character: Don Rainsford

Audrey Long

Character: Ellen Trowbridge

Edgar Barrier

Character: Erich Kreiger

Russell Wade

Character: Robert Trowbridge

Russell Hicks

Character: Mr. Whitney

Jason Robards Sr.

Character: Captain

Gene Roth

Character: Pleshke

Noble Johnson

Character: Carib

Robert Clarke

Character: Helmsman

Jimmy Dime

Character: Bulgar

Edmund Glover

Character: Quartermaster

Jimmy Jordan

Character: Steward

Victor Romito

Character: Mongol

Larry Wheat

Character: (uncredited)

Bruce Edwards

Character: Collins