What movie and television projects has Sigfrit Steiner been in?

There's no known actor, director, or crew member named Sigfrit Steiner with any significant credits in movies or television.

It's possible:

* The name is misspelled: Check for alternate spellings or variations.

* The person is not a major figure: They may have worked on smaller projects or in roles like a background actor, which wouldn't be easily tracked.

Could you please double-check the name or provide more context? That will help me provide a more accurate answer.