MacDougal
Seaman Edward Birkett
Gordon Lowther
MacDonald 'Intelligence'
Doctor Johnson
Charles Stewart
BBC TV producer
Scotty Duncan
Father Joseph
Tom - Friend of Harry's
Inspector Alec MacDonald
Horatio
Captain Engel
Capt. Jimmy Cairns, M.C. (Battalion Adjutant)
Carswell
Sergeant
Vahlin
Scottie
George Campbell
Farmer
Captain Leeds
Self (uncredited)
Dr. Marston
Jessop Brown
Messboy John Jamieson - M.V. San Demetrio
Fred Blake
Lt. David Lennox
Steward (uncredited)
Commander Cavendish
David Sutton
Sgt. MacKenzie
Tom Harker
Brian Stern
Mr. Ransome
John Merritt
Young 'un
Sir Anthony Phelps
Paul Tracy
Fielding
Percy
'Chalky' White
Mac
David Shields
Jock Melville
Brian Hardison
Detective Inspector Campbell
Capt. Jock Bateson
Peter J. Florian
Ted Burns
Leading Seaman Johnson
Mr. Mallory
James MacAfee
Dougal McLean (uncredited)
Don Wescot
Inspector Cabell
Dr. Thomas Murray
Narrator
Sergeant Malcolm
Hiker
Ralph
District Officer
Mr. Dunner
British Soldier
Bill Donovan
Alastair 'Jock' MacFarlan, 19th Fusillers
Arthur Winslow
Lockie McGibbon
PC Alec
Self
Roger Fenton
Bruce
Carnoustie Bligh
Hector
Tom Kennedy
Dr. Anson
Major Browne
Harry
(uncredited)
British Sergeant Questioning Chapman (uncredited)
Jimmy Norris
Himself (Uncredited)
Angus Hudson
Sgt. McKinnon
Sir William Belgrave
Prof. Bramston
Supt. Armstrong
George Cowley
Noel Strachan
Professor Gardner Cairey