King of Alcatraz

Gail Patrick

Dale Borden

Lloyd Nolan

Raymond Grayson

Harry Carey

Captain Glennan

J. Carrol Naish

Steve Murkil

Robert Preston

Robert MacArthur

Anthony Quinn

Lou Gedney

Dennis Morgan

First Mate Rogers (as Richard Stanley)

Richard Denning

Harry Vay

Konstantin Shayne

Murok

Eddie Marr

Dave Carter

Emory Parnell

Olaf

Paul Fix

'Nails' Miller

Virginia Vale

Dixie (as Dorothy Howe)

Monte Blue

Officer

John Hart

1st Radio Operator

Phil Warren

Radio Operator (as Philip Warren)