Actor	Papel
Gladys Henson	Attendant
Paul Hardtmuth	Priest
Michael Hordern	Lab Director Owens
George Benson	Sandwich Stand Customer
Eric Pohlmann	Joe - the bartender
John Horsley	Customs Officer
Patric Doonan	Customs Man
Joan Haythorne	Judy
Jill Balcon	Wardress (uncredited)
John Gabriel	Night Field Telephone Officer (uncredited)
Hyma Beckley	Café Mimosa Patron (uncredited)
John Boxer	Police Sergeant at Customs Café (uncredited)
Ernest Butcher	Tom - Lab Assistant (uncredited)
Daniel Brown	Train Passenger (uncredited)
Robert Cawdron	Soldier at Station Checkpoint (uncredited)
Noel Johnson	Frank Conway (uncredited)
Anton Diffring	Officer at Station (uncredited)

Toni Frost	Stewardess (uncredited)
Charles Hammon	Train Passenger in Platform Line-up (uncredited)
Philo Hauser	Waiter (uncredited)
John G. Heller	Soldier at Station Check Point (uncredited)
Sam Kydd	Customs Man (uncredited)
Richard Marner	Soldier on Train (uncredited)
Louis Matto	Café Mimosa Waiter (uncredited)
Anthony Newley	Operator (uncredited)
Michael Ritterman	The ‘Tail’ (uncredited)
Lance Secretan	Alan (uncredited)
Dinah Sheridan	Train Passenger at Checkpoint (uncredited)
Ewen Solon	Enemy Scientist (uncredited)
Emile Stemmler	Soldier at Station Checkpoint (uncredited)
Robert Vossler	Day Sentry at First Checkpoint (uncredited)
John Wilder	Customs Officer (uncredited)
Billy Wilmot	Café Mimosa Customer (uncredited)

Detalle	Valor
Título original	Highly Dangerous
Idioma original	English (EN)
Idiomas hablados	English
Países de producción	United Kingdom
Estado	Estrenado
Compañías de producción	Two Cities Films, J. Arthur Rank Organisation
Fecha de estreno	6 dicembre 1950
Productor ejecutivo	Earl St. John
Producción	Antony Darnborough
Guion	Eric Ambler
Montaje	Alfred Roome
Fotografía	Reginald H. Wyer
Ayudantes de dirección	Roy Ward Baker
Operadores de cámara	Reginald H. Wyer

Sinopsis

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