From series regulars and recurring roles down to the folks who just did guest spots, thousands of actors have brought the characters of Star Trek to life. Hear them describe what it's like on their side of the camera lens.

Didn't realize there was a cartoon version of Star Trek in the early 1970s? Not only was it great, but with original series creator Gene Roddenberry, writer D.C. Fontana, and the series' original stars on board, it is the fourth season of the original show.