The Ropers spent a fair amount of time poking into the unusual living arrangements of their young neighbors and the rest sparring between themselves. Fell and Lindley left the sitcom in 1979 to star in The Ropers, a spinoff that aired until 1980.
Lindley, 79, died in 1997 of complications from leukemia.
Three’s Company continued until 1984 with Don Knotts as the new landlord and other cast changes.
A native of Philadelphia, Fell served as a tail gunner in the Pacific during World War II and earned his bachelor’s degree in drama from Temple University.
He studied acting after his return from the war and struggled to win small parts in New York stage and TV productions, including 1954’s Twelve Angry Men. His first regular series role was in the short-lived 1956 comedy Joe & Mabel.
After moving to Los Angeles in 1958, Fell won supporting roles in films and, in 1961-62, the part of police Detective Meyer in the drama 87th Precinct, based on the Ed McBain mystery novels.