It's possible you are thinking of:
* A different title: Could you double-check the title of the project you are referring to?
* A specific episode: If you're talking about a TV series, could you specify which season or episode you're asking about?
* A film that isn't widely known: If it's a less known film, providing some details like the genre or plot could help me identify it.
Once I have more information, I can help you find the cast list.