(written from a Production point of view)
He was best known for his recurring role as Andy Bradley on the television soap opera Dallas from 1979 until 1986. Fellow Star Trek alumni Susan Howard, Michael Bell, Joanna Cassidy, Glenn Corbett, Barry Jenner, Leigh J. McCloskey, Derek McGrath, Andrew Prine, Bert Remsen, William Smithers, Ray Wise, and Morgan Woodward were regulars on this series, and Barbara Babcock was another frequent guest.
He has guest-starred on numerous other TV shows, including Mission: Impossible, Have Gun - Will Travel, The Untouchables, My Favorite Martian (with Ray Walston), The Big Valley, Bewitched, The Fugitive, Barnaby Jones (with Lee Meriwether), Gunsmoke, Kolchak: The Night Stalker (with John Fiedler), The Rockford Files, Charlie's Angels, and Quincy, M. E. (with Robert Ito and Garry Walberg). He also appeared in the TV movies The Alpha Caper (1973, with Leonard Nimoy, Vic Tayback, Kenneth Tobey, and James B. Sikking), Columbo: A Friend in Deed (1974, with Richard Kiley), Sherlock Holmes in New York (1976, with John Abbott and David Huddleston), Dawn: Portrait of a Teen Runaway (1976, with Leigh J. McCloskey, William Schallert), and The Return of Frank Cannon (1980, directed by Corey Allen and featuring Diana Muldaur and William Smithers).
He was one of several Star Trek actors to appear in the 1969 film Madigan. The others include TOS guest stars Michael Dunn, Steve Ihnat, Warren Stevens, Dallas Mitchell, Lloyd Haynes, Gloria Calomee, and William Bramley, and TNG guest star John McLiam.
He appeared in a number of other films, including The Brass Legend (1956, with Willard Sage and Clegg Hoyt), Kid Galahad (1962, with Bert Remsen), Captain Newman, M.D. (1963, with James Gregory, Paul Carr, Barry Atwater, and Seamon Glass), Hang 'Em High (1968, with Mark Lenard and Bill Zuckert), Live a Little, Love a Little (1968, with Celeste Yarnall), The Big Bounce (1969, with Leigh Taylor-Young and Charles Cooper), Suppose They Gave a War and Nobody Came? (1970, with Brian Keith, John Fiedler, William Bramley, and Vince Howard), Evel Knievel (1971, with Hal Baylor), One Little Indian (1973, with Morgan Woodward, Robert Pine, Andrew Prine, and Hal Baylor), Executive Action (1973, with Gilbert Green, John Anderson, Paul Carr, Ed Lauter, Lee Delano, and Dick Miller) Westworld (1973, with Alan Oppenheimer, Majel Barrett, and Davis Roberts), Escape to Witch Mountain (1975, with Lawrence Montaigne and Rex Holman), and Smokey and the Bandit (1980). His latest film was 1989's Cage, also featuring Jimmie F. Skaggs.