- Country: Switzerland, West Germany
- Genres: Documentary
- Release: 1965-04-15
- Director: Inigo Gallo
- Writers: N/A
- Language: German | French
- Stars: Ursula Deutschendorf , Cora Roberts , Maurice Chevalier , Grock
- Runtime: 90 min
- Awards: N/A
- AKA: Grock - König hinter der Maske , Grock - König hinter der Maske
- Plot: N/A
- IMDB:tt5313062