It's possible that:
* The name is slightly incorrect: Perhaps there's a small spelling difference in the name.
* He's not credited under his full name: Some actors use stage names or initials in their credits.
* He works behind the scenes: He might be a writer, director, producer, or other crew member, which doesn't always lead to public recognition.
To help me find information, could you please provide:
* Any other information about him: Like age, location, or specific roles he might have played.
* Any additional context: Why are you trying to find information about this person?
With more details, I might be able to assist you in finding the right John Thomas Hooper.