Margaret Lockwood (34)

Frances Gray

Dane Clark (38)

Bill Casey

Marius Goring (38)

Commandant Anton Razinski

Naunton Wayne (49)

Mr. Hedgerley

Wilfrid Hyde-White (47)

Mr. Luke

Eugene Deckers (37)

Alf

Olaf Pooley (36)

Detective-Interrogator

Gladys Henson (53)

Attendant

Paul Hardtmuth (62)

Priest

Michael Hordern (39)

Lab Director Owens

George Benson (39)

Sandwich Stand Customer

Eric Pohlmann (37)

Joe - the bartender

John Horsley (30)

Customs Officer

Patric Doonan (25)

Customs Man

Joan Haythorne (35)

Judy

Jill Balcon (25)

Wardress (uncredited)

John Gabriel (36)

Night Field Telephone Officer (uncredited)

Hyma Beckley (39)

Café Mimosa Patron (uncredited)

John Boxer (41)

Police Sergeant at Customs Café (uncredited)

Ernest Butcher (65)

Tom - Lab Assistant (uncredited)

Daniel Brown

Train Passenger (uncredited)

Robert Cawdron (28)

Soldier at Station Checkpoint (uncredited)

Noel Johnson (33)

Frank Conway (uncredited)

Anton Diffring (34)

Officer at Station (uncredited)

Toni Frost

Stewardess (uncredited)

Charles Hammon

Train Passenger in Platform Line-up (uncredited)

Philo Hauser (35)

Waiter (uncredited)

John G. Heller (22)

Soldier at Station Check Point (uncredited)

Sam Kydd (33)

Customs Man (uncredited)

Richard Marner (29)

Soldier on Train (uncredited)