From Battlestar Wiki, the free, open content Battlestar Galactica encyclopedia and episode guide
Murdock's vigorous filmography has recurring and guest roles in many genres of television, including episodes of The Twilight Zone, Death Valley Days, Tarzan, Night Gallery, Dynasty, Night Court, Smallville, Lois and Clark, The X-Files, Law and Order, and CSI: Crime Scene Investigation. Murdock's most popular comedic role was as the "by the book" police officer, Lt. Ben Scanlon, in Barney Miller.
Murdock also had roles in another Glen Larson program, Knight Rider.
Star Trek fans may remember Murdock (or his voice) in the climactic The Next Generation two-part episode, "The Best of Both Worlds", as Admiral J.P. Hanson, commander of the ill-fated Battle of Wolf 359 against the Borg. Murdock also lent his speaking talents as "God" in the film, Star Trek V: The Final Frontier.
Murdock lent voice acting to several American animated shows, including Batman, and Looney Tunes: Back in Action.