Lee Duncan (born 13 January 1939; age 86) is the actor who played Evans in the Star Trek: The Original Series third season episode "Elaan of Troyius". He filmed his scenes on Tuesday 4 June 1968 and Friday 7 June 1968 at Desilu Stage 9.
Duncan was the stunt double for Greg Morris (father of Phil and Iona Morris) on Mission: Impossible, which was also produced by Desilu. He also made acting appearances on the show, including episodes with Leonard Nimoy, Lee Bergere and Joseph Ruskin, in addition to guest appearances on such shows as The Mod Squad with Clarence Williams III and Tige Andrews, Then Came Bronson with Robert Hooks, and The Odd Couple (with Bill Quinn, Garry Walberg and Terri Garr).
Throughout the 1980s and 1990s, Duncan appeared on such television series as Knight Rider (1982, starring William Daniels and Patricia McPherson, with Lawrence Dobkin), 7th Heaven (1996, starring Stephen Collins and Catherine Hicks, with Graham Jarvis and Raphael Sbarge), and The Pretender (with Paul Eiding, Gregg Henry and Christopher Michael). In 2000, he was seen in an episode of The X-Files starring Gillian Anderson, with Joe Morton and Jack Shearer. He most recently appeared as a Supreme Court justice on Boston Legal starring John Larroquette and William Shatner, with Bob Gunton and Jack Shearer.
He also appeared in a few films, the earliest being Zabriskie Point (1970) with Paul Fix, The Mack (1973, with George Murdock), and Hit! (1973) with Noble Willingham. He returned to films in 1995 with a small role as a police officer in the drama White Man's Burden, which co-starred Brian Brophy, Bert Remsen, Bumper Robinson and Tom Wright. Later film credits include Essence of Echoes (2002) and Taphephobia (2006).