* He may be a relatively unknown actor with minor roles or appearances in projects that haven't gained widespread recognition.
* He might be a crew member or a technician working behind the scenes, whose name doesn't appear in public databases or credits.
* He might have used a different name or alias in his acting career.
To get a more accurate answer, you would need to provide more information about William Lash, such as:
* His full name: This would help to differentiate him from other individuals with the same name.
* His approximate age or year of birth: This could narrow down the search.
* Any specific projects he may have worked on: Even a partial title or a genre could provide a clue.
With more information, we could conduct a more focused search and possibly find out more about William Lash's involvement in movie and television projects.