- Country: East Germany
- Genres: Sci-Fi
- Release: 1979-07-19
- Director: Gottfried Kolditz
- Writers: Gottfried Kolditz
- Language: German
- Stars: Erwin Geschonneck , Vlastimil Brodský , Jaecki Schwarz , Karin Ugowski , Renate Blume , Milan Beli , Amza Pellea , Fred Delmare , Hans Bergermann , Ursula Braun
- Runtime: 87 min
- Awards: N/A
- AKA: The Thing in the Castle , Дело в замке , The Thing in the Castle (United Kingdom) , Das Ding im Schloß , Das Ding im Schloß , The Thing in the Castle (United States of America)
- Plot: A senior professor is kidnapped in the park by residents of a veterans home. Once there, he is asked to invent a "rejuvenating machine" to restore their youth.
- IMDB:tt0172325
The Thing in the Castle Cast · · · ALL
Gottfried Kolditz
Director
Erwin Geschonneck
Prof. Bunzberger
Vlastimil Brodský
Prof. K.
Jaecki Schwarz
Axel
Renate Blume
Susi
Milan Beli
Reporter
Amza Pellea
Wenzel
Fred Delmare
Theo
Erich Mirek
Erich Petraschk
Karin Ugowski
Gerry Wolff
Ursula Braun
Werner Lierck