Will Mackenzie (b. 1938) is an actor (notably recurring on The Bob Newhart Show as Larry Bondurant) who later became a prolific TV director. His early interests included puppetry before switching to acting. He began his career as a New York stage actor, however, and while he was appearing on Broadway in Hello, Dolly! (as Cornelius Hackl), he was cast as Prince Charming in Jim Henson's 1965 pilot Cinderella. He discussed the experience in 2008:
Mackenzie's Broadway credits included the original cast of the musical Half a Sixpence and a 1972 version of Much Ado About Nothing, while other early TV roles included parts on Stage 67 (in the Burt Bacharach TV musical On the Flipside), Mod Squad, and That Girl, as well as voice-overs for Bugles corn chips and other commercials. By the 1970s, he'd made appearances on several of the Mary Tyler Moore and Norman Lear-produced sitcoms, including Rhoda, Maude and All in the Family (in both as a clergyman), while landing his most visible role on The Bob Newhart Show as Larry Bondurant, husband of receptionist Carol, appearing sporadically from 1975 through 1977.
He began directing on the series and others, including Newhart, WKRP in Cincinatti, Archie Bunker's Place, and Remington Steele. He was one of the main directors on Family Ties and Moonlighting (garnering Emmy nominations for his work on both series), and remained active directing episodes of Dharma and Greg, Soul Man, Everybody Loves Raymond, and Scrubs (including "My Musical," guest starring Stephanie D'Abruzzo and netting another Emmy nomination).