Conrad Veidt
Captain Ernst Hardt

Sebastian Shaw
Ashington

Valerie Hobson
The School Mistress

Marius Goring
Lieutenant Felix Schuster

June Duprez
Anne Burnett

Athole Stewart
The Rev. Hector Matthews

Agnes Lauchlan
Mrs. Matthews

Helen Haye
Mrs. Sedley

Cyril Raymond
The Rev. John Harris

Hay Petrie
Engineer

Robert Rendel
Admiral

Mary Morris
Chauffeuse

Torin Thatcher
Submarine Officer

Esma Cannon
Maggie

Cyril Chamberlain
Bit Part (uncredited)

Bryan Herbert
Corporal Guarding POW's on Ferry

Skelton Knaggs
German Sailor looking for Capt. Hardt

Howard Marion-Crawford
German Officer in Kieler Hof Hotel

Bernard Miles
Hans - Hotel Receptionist

John Penrose
Newlywed at Kiel Hotel

Johnnie Schofield
Armed Guard of POWs on Ferry

Graham Stark
Bell Boy (uncredited)

Jack Lambert
Passport Official (uncredited)