(written from a Production point of view)
Lou Elias (born 21 November 1933; age 84) (sometimes credited as Louie Elias) is an actor and stuntman who performed stunts for Star Trek: The Original Series He also appeared in acting roles in several episodes. His only credited appearance, however, was in "And the Children Shall Lead", as an Enterprise technician. Elias is the brother of Trek hair stylist Carolyn Elias and actor James Stacy.
He filmed his scenes for "Dagger of the Mind" on Friday 12 August 1966 at Desilu Stage 10. He filmed his scene for "And the Children Shall Lead" on Thursday 27 June 1968, his scene for "Is There in Truth No Beauty?" on Wednesday 24 July 1968, and his scene for "The Tholian Web" on Monday 12 August 1968, all three at Stage 9. He filmed his scenes for "The Cloud Minders" on Wednesday 13 November 1968 at Stage 10.
In addition to Star Trek, Elias has made several appearances on Combat! and Charlie's Angels. Additional TV credits include Batman, Gunsmoke, M*A*S*H, Hill Street Blues, The Fall Guy, Knight Rider, and L.A. Law, as well as the 1978 mini-series How the West Was Won (co-starring William Shatner, William Boyett, Robert DoQui, Fionnula Flanagan, Richard Hale, Brian Keith, Ricardo Montalban, George D. Wallace, Morgan Woodward, and Harris Yulin). He has also appeared in films such as Tickle Me, Posse, Night Moves, The Apple Dumpling Gang Rides Again, and Solar Crisis, and has performed stunts for films like Spartacus, True Grit, The Wild Bunch, The Longest Yard, Flashdance, and Dick Tracy. He had a small speaking part in an episode of The Incredible Hulk but there was no credit for him that he starred in that episode. "Behind the Wheel" may have been the name of the episode.....where David worked at The Majestic Taxi Cab Company.