Lars Hensen
Lars Hensen  was an actor who played a Betan passerby in the  first season episode . He filmed his scenes on Wednesday  and Thursday  on location at the 40 Acres backlot. He then appeared as an Elba II inmate in the third season episode . As a background performer, he received no credit for his appearances.

Hensen ventured into the movie industry during World War II, and found steady employment as a background actor, playing pilots, airmen and other "faces in the crowd". From the late-1940s onwards, he also worked as a stand-in. He befriended actor  (father of Julie Cobb and grandfather of Rosemary Morgan) and served as his stand-in on the television series The Virginian between 1962 and 1966.

He appeared as bit and background player in films such as Neptune's Daughter (1949, starring Ricardo Montalban, featuring Monty O'Grady and Carl Saxe), An American in Paris (1951, with Dick Cherney), Singin' in the Rain (1952, with Gail Bonney, Morgan Jones, Joseph Mell, and William Schallert), From Here to Eternity (1953, with Joseph Sargent), To Catch a Thief (1955, with Monty O'Grady), The Apartment (1960, with Ray Walston, Paul Power, and Monty O'Grady), Spartacus (1960, starring Jean Simmons, featuring Peter Brocco, Seamon Glass, Paul Lambert, John Hoyt, Arthur Batanides, Paul Baxley, William Blackburn, Bill Catching, Tony Dante, Bob Hoy, Loren Janes, Anthony Jochim, Pete Kellett, Hubie Kerns, Sr., Carey Loftin, Gil Perkins, Jack Perkins, Vic Perrin, and Tom Steele), The Man Who Shot Liberty Valance (1962, with Dick Cherney, Noble Chissell, Jane Crowley, Tony Dante, Charles Seel, Eleanore Vogel, and Max Wagner), The Manchurian Candidate (1962, with James Gregory, Leslie Parrish, Reggie Nalder, Benjie Bancroft, Whit Bissell, William Meader, and Al Cavens), Torn Curtain (1966, with David Opatoshu, Dick Cherney, Paul Power, and Arthur Tovey), Airplane II: The Sequel (1982, co-starring William Shatner, featuring John Vernon, Bruce French, Earl Boen, Marcy Lafferty, Frieda Rentie, Louise Sorel, David Paymer, and Gregory Itzin), and Twilight Zone: The Movie (1983, with Bill Mumy, William Schallert, Eddy Donno, Bill Quinn, John Larroquette, Peter Brocco, Dick Miller, and Larry Cedar).

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Performers
TOS performers