Pat first appeared in Irwin Allen's Voyage to the Bottom of the Sea (episode No Way Out) when he was 20 years old. He played a seaman who guarded a door on the Seaview and he is required to refuse entry to the episode trouble maker. It was a well acted scene that looked great on film and the quality of the moment made Irwin Allen cast Pat in other projects.
A Vietnam war veteran.
Graduated from Hollywood High School.
Originally wanted to be a magician and cites Harry Houdini as his childhood hero.