There is no movie with that exact title in German film databases. There is a 1959 West German film titled "Alle lieben Peter". However, it seems to be a documentary and would not have actors in the traditional sense.
It's possible the title you're searching for is slightly different or that the information is incorrect.
Could you please clarify:
* Is there a specific film title you're looking for?
* What kind of film are you looking for? (e.g., drama, comedy, documentary)
* Can you provide any other information about the film, such as a director, producer, or plot summary?
With more information, I can help you find the correct cast list.