Gris
Comdr. Don Winslow
Eddie Daniels
Buckskin Billy Burke
Captain Kirk Armstrong
Sgt. Dick 'Rusty' Manson
Dr. David Lynd
Canadian Army Captain William Flynn Hitchcock, aka Bill Flinn, posing as Captain Wilhelm Roering
Lieutenant
Cmdr. Don Winslow
Strangler (uncredited)
Reef (uncredited)
Ping-Pong Player
District Attorney Don Blane
Larry Kent
Frederick 'Fred' Garth
Inspector Kellog
William Dennis
Tim Sawyer
Duke Mallor
Bob Reid
Party Guest (Uncredited)
Gregg
Bob Hamlin
Policeman (uncredited)
Dick Starr
Jimmy Williams
