Billy Blackburn was a frequent background actor on the original Star Trek series. He played tons of parts, from the Gorn captain to Lieutenant Hadley.

Blackburn made a habit of bringing his home movie camera with him on the Star Trek set. In doing so, he caught all kinds of goofing around, along with behind-the-scenes footage of the show. In this seven-minute compilation, Blackburn narrates a bunch of his footage, mostly featuring William Shatner and Leonard Nimoy. Enjoy:

(Note: Blackburn had some non-Trek roles, including an appearance as a prisoner in Spartacus!)