One of the most prolific sitcom guest stars of the 1960s and 1970s - Bernie Kopell.
When Things Were Rotten was a sitcom created in 1975 by Mel Brooks and aired for half a season by ABC. A parody of the Robin Hood legend, the series starred Richard Gautier (who earlier had played Hymie the Robot in Brooks’ Get Smart series) as Robin Hood.
Also in the regular cast were Dick Van Patten as Friar Tuck, Bernie Kopell (another Get Smart veteran, above) as Alan-a-Dale, Henry Polic II as the Sheriff of Nottingham (whose name was Hubert), Ron Rifkin as Prince John, Misty Rowe as Maid Marian, and David Sabin as Little John.
The rapid-fire, Mel Brooks style of comedy was out of place on network television of the era, so despite critical acclaim, the series failed to find an audience and was canceled after 13 episodes, with The Bionic Woman being its mid-season replacement.