There might be a few possibilities:
* A less known actor: He could be a relatively unknown actor with a limited resume.
* A different spelling: Perhaps there's a slight misspelling in the name, and you're thinking of someone else.
* A non-actor: He might be someone else entirely, not associated with the entertainment industry.
To help me find the information you're looking for, please provide me with more context:
* What is Gary Prendergast known for? (e.g., a specific role, a genre he works in, etc.)
* Do you have any other details about him? (e.g., nationality, age range, etc.)
With more information, I can try to find the right Gary Prendergast and his projects.