It's possible:
* The name is misspelled: Could you double-check the spelling?
* They are less well-known: It's possible they are involved in smaller productions or are in the early stages of their career.
* They work behind the scenes: Maybe they are a director, writer, producer, or another role not typically credited on-screen.
To help me find information, could you provide more context?
* Do you have any other information about them? (e.g., their age, location, specific genre of work)
* Do you have a photo or a link to something about them?
With more details, I can try to locate them and find their filmography.