- Country: West Germany
- Genres: Crime, Drama, Thriller
- Release: 1951-09-07
- Director: Peter Lorre
- Writers: Peter Lorre , Benno Vigny , Axel Eggebrecht
- Language: German
- Stars: Peter Lorre , Karl John (1905–1977) , Helmuth Rudolph , Johanna Hofer , Renate Mannhardt , Eva Ingeborg Scholz , Lotte Rausch , Gisela Trowe , Hansi Wendler , Kurt Meister
- Runtime: 98 min
- Awards: 1 win & 1 nomination
- AKA: Izgubljeni , O homem perdido (Portugal, Portuguese Republic) , Zagubiony (Poland) , El extraviado (Argentina) , Un homme perdu (France, French Republic) , The Lost Man , Потерянный , Kadunud mees (Estonia) , Das Untier , The Lost Man (United States of America) , Der Verlorene , Kadotettu (Finland) , The Lost Man (United Kingdom) , Un uomo perduto (Italy) , Der Verlorene , L'homme perdu (France, French Republic) , The Lost One , El hombre perdido (Spain)
- Plot: German scientist murders his fiancée during World War II when he learns that she has been selling the results of his secret research to the enemy.
- IMDB:tt0044188
Der Verlorene Cast · · · ALL
Peter Lorre
Director
Peter Lorre
Dr. Karl Rothe, alias Dr. Karl Neumeister
Karl John
(1905–1977)
Hösch, alias Nowak
Helmuth Rudolph
Colonel Winkler
Johanna Hofer
Mrs. Hermann
Renate Mannhardt
Inge Hermann
Eva Ingeborg Scholz
Ursula Weber
Peter Ahrweiler
Oberstleutnant Marquardt
Gisela Trowe
Prostitute
Richard Münch
1. Kriminalbeamter
Lotte Rausch
Woman on the train
Hansi Wendler
Alexander Hunzinger
Josef Dahmen
Hans Fitz
Kurt Fuß
Joachim Hess
Lieutenant