The Spy in Black

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

George Summers

Captain Ratter

Hay Petrie

Engineer

Grant Sutherland

Bob Bratt

Robert Rendel

Admiral

Mary Morris

Chauffeuse

Margaret Moffatt

Kate

Kenneth Warrington

Commander Denis

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

Diana Sinclair-Hall

Undetermined Minor Role (uncredited)

Graham Stark

Bell Boy (uncredited)

Jack Lambert

Passport Official (uncredited)

Jeanne Macintyre

German Girl (uncredited)

Jack Sharp