Peter Bonerz eventually parlayed this into an entire career as a respected TV director.
Will Mackenzie (Larry Bonderant) directed one episode and then went on to direct episodes of Taxi and WKRP in Cincinnati.
Marathon Running: Two for Nick @ Nite — first Better Living Through Bob, which introduced the series to the schedule with a season-a-night run of all the episodes for eight nights; and then Bob's Bob, Bob Newhart, Newhart Marathon, which featured selected episodes of all three series as it introduced Newhart to N@N and Bob! to sister channel TV Land.
The Peeper (Tom Poston) would return as Handyman George Utley in Bob's "Newhart" dream, although Bob doesn't seem to recognize him when he wakes up. (Interestingly, The Peeper once mentions he was born in Vermont, where the later series was set, and plans to return there following his divorce.)
William Redfield, who played the Hartleys' neighbor Arthur Hoover in the pilot, would later play the role of Howard's brother Warden Gordon Borden.
Comedian Archie Hahn (from the British Whose Line Is It Anyway?) made his television debut in one episode of this show, playing a hotel bellhop. He appeared again in a later episode, this time playing a cruise director.