series The Lieutenant. This drama, about the peacetime Marines, was produced by the creators of Star Trek (Gene Roddenberry) and The Man from U.N.C.L.E. (Norman Felton). The series co-starred Robert Vaughn as Lieutenant Rice's immediate superior, Captain Raymond Rambridge. Despite moderately good reviews, The Lieutenant Saturday night time slot, opposite CBS' popular Jackie Gleason's American Scene Magazine, hastened its cancellation after 29 episodes. In 1964, Lockwood guest-starred as Major Gus Denver in the first season of 12 O'Clock High, in episode 9, "Appointment at Liege", and again in 1965 in episode 29, "V For Vendetta". He also guest-starred as Lt. Josh McGraw in season 2, episode 4, "The Idolator" of 12 O'Clock High. Shortly afterwards, Lockwood starred in another NBC television series The Kraft Mystery Theater (also known as Crisis) in an episode titled "Connery's Hands". He was cast opposite Sally Kellerman, with whom he would soon appear again as Helmsman Gary Mitchell in the second Star Trek pilot "Where No Man Has Gone Before" (1965) in which their characters developed malign super powers. In 1966, Lockwood guest starred as Clint Bethard in the episode "Reunion" of ABC's The Legend of Jesse James, starring Christopher Jones in the title role of Jesse James. That same year, Lockwood appeared as Danny Hamil on the episode "Day of Thunder" of the NBC drama The Long, Hot Summer, based loosely on the works of William Faulkner. He appeared twice in 1966 as Jim Stark in the two-part episode "The Raid" of CBS' Gunsmoke with James Arness. He is perhaps best known for his co-starring role in Stanley Kubrick's iconic 2001: A Space Odyssey (1968) as Dr. Frank Poole. Lockwood was the lead in Model Shop (1969), the American debut by French writer-director Jacques Demy. Lockwood co-starred with Stefanie Powers (then his wife) in an episode of ABC's Love, American Style as a newlywed who gets his mouth stuck around a doorknob. In 1983, he guest starred in the series Hart to Hart ("Emily by Hart") with Robert Wagner and Powers, by then his ex-wife. Between 1959 and 2004, Lockwood gained roles in some forty theatrical features and made-for-TV movies and eighty TV guest appearances, including the CBS 1975 family drama Three for the Road and Barnaby Jones starring Buddy Ebsen, in which he appeared many times as a villain. Personal life Lockwood has been married two times. His first marriage was in 1966