Scott Walters
Marian Taylor
Perry Henderson / Arthur Henderson
Supt. Roberts
Capt. Malburn
Martell
Pitt
Lady on the Niagara
Vincent
Pan American Airways Clerk
Pan American Girl
Junior Secretary
Irish Landlady
Waiter
Wireless Operator
Clerk
Jim
Redhead (unconfirmed, uncredited)
Mrs. Henderson
Skipper
Smith, Hotel Clerk
Servant
Steward