It's possible that:
* The name is misspelled. Double-check the spelling.
* The actor may not have a prominent filmography. Many actors work on smaller projects or haven't gained widespread recognition yet.
* The actor is relatively new to the industry. It's possible they haven't appeared in many projects yet.
To find more information, you could:
* Search for his name with additional keywords: Try searching for "Ludvig Bonin Swedish actor" or "Ludvig Bonin film credits."
* Check film databases: Websites like IMDb and The Movie Database (TMDb) often have extensive actor profiles.
* Look for information on Swedish film websites: You could search for Swedish film sites or websites dedicated to Scandinavian actors.
If you can provide any more details (like the type of projects he's worked on or any specific roles you remember), it may help to narrow down the search.