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John Ritter portrayed the klutzy ladies' man and culinary student Jack Tripper on 'Three's Company,' which ran for eight seasons between 1976 until 1984.
'Three's Company' followed the lives of three single roommates, Jack Tripper (John Ritter), Janet Wood (Joyce DeWitt) and Chrissy Snow (Suzanne Somers), their living arrangement and sexual exploits. At the time of the show's debut in 1976, co-ed living was still somewhat taboo and the trio told the landlord Stanley Roper (Norman Fell) that Jack was gay, while the landlord's wife Helen (Audra Lindley) knew what 'the kids' were doing.
When Somers was written off the show in 1981, her character Chrissy Snow was sent to care for her sick mother in Fresno and was temporarily replaced by Chrissy's cousin Cindy Snow (Jenilee Harrison) before their permanent roommate, nurse Terri Alden (Priscilla Barnes) moved in.
Lindley and Fell went on to star in the spinoff 'The Ropers,' which ran between 1979 and 1980 on ABC, which showed the couple moving from their 'Three's Company' home to live in the fancier Cheviot Hills community and sold the building. The new owner's brother Ralph Furley (Don Knotts) took over as the landlord.
Prior to 'Three's Company,' Ritter portrayed Reverend Matthew Fordwick on 'The Waltons' in 18 episodes airing between 1972 and 1976.
Following 'Three's Company,' he appeared on the short-lived spinoff series 'Three's a Crowd,' portrayed a detective on 'Hooperman' and an aide to the Senator in 'Hearts Afire.'
The actor appeared in several films during his career, including 'Problem Child,' 'Sling Blade,' 'Noises Off' and 'Skin Deep.'
Ritter was married to actress Nancy Morgan from 1977 until they divorced in 1996. He married actress Amy Yasbeck in 1999, after portraying husband and wife on 'The Cosby Show,' 'Problem Child' and 'Wings.'
Ritter and Morgan had three children - Carly, Taylor and 'Joan of Arcadia' actor Jason Ritter. He and Yasbeck had a daughter named Stella, a year before they were married.
Ritter died at age 54 of an aortic dissection caused by an undiagnosed congenital defect on September 11, 2003.
(Pictured: Jason Ritter appears in a still from 'Three's Company.' / Jason Ritter appears in a promotional photo for '8 Simple Rules.')