William Boyd

Steve Haines

Sheila Terry

Jane Kent

Eleanor Hunt

Gloria Palmer

Lloyd Ingraham

Ship Captain Ward

LeRoy Mason

Tony Marchetti

Jimmy Aubrey

Reggie Parks

Clarence Geldart

Henry Kent

Lee Shumway

John Graham, posing as Frank Marion

Louis Natheaux

Lindner, the Steward

Ernest Hilliard

Walter Bernard, the Editor