Actor
Heinrich Gretler
3 credited titles on WatchWise
Heinrich Gretler (1897–1977) was a Swiss film and television actor, who also starred on stage at the Bernhard-Theater in Zurich. Source: Article "Heinrich Gretler" from Wikipedia in English, licensed under CC-BY-SA 3.0.
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Commercial performance
Not enough verified figures yet — only 0 of 3 catalogued titles have publicly reported budget and worldwide gross. Many films (television, independent and regional cinema) never publish these numbers; where they exist, WatchWise fills them in automatically from TMDB and Wikipedia.
Acted in (3)
Titles are ones WatchWise has catalogued so far — not necessarily a complete filmography.