Three's Company

Cast

• John Ritter as Jack Tripper (entire run), the clumsy culinary student and swinging bachelor who has to pretend he's gay so he can live with two female roommates. Later in the series he runs his own restaurant named "Jack's Bistro." (Billy Crystal auditioned for this role).
• Joyce DeWitt as Janet Wood (entire run), the down-to-earth brunette who worked in a flower shop. (Ann Reinking auditioned for the role)
• Suzanne Somers as Chrissy Snow (1977-1981), the ditzy blonde who was a typist. (Loni Anderson auditioned for the role).
• Jenilee Harrison as Cindy Snow (1980-1982), Chrissy's equally ditzy (and catastrophically clumsy) cousin and her replacement in the apartment.
• Priscilla Barnes as Teri Alden (1981-1984), Cindy's replacement, a (usually) non-ditzy, intelligent blonde nurse who seemed to be the show's answer to complaints about their portrayal of blondes.
• Norman Fell (1977-1979) as Stanley Roper, the hard-nosed landlord who seemed obsessed with Jack's sexuality. He became known for breaking the fourth wall after making a wisecrack.
• Audra Lindley (1977-1979) as Helen Roper, the landlord's wife, who was always friendly to the "kids" in the apartment and frustrated that her husband never wanted to have sex. Unlike her husband, she knew that Jack was not gay from the start but didn't mind.
• Don Knotts as Ralph Furley (1979-1984), Mr. Roper's replacement, the goofy, flamboyantly dressed landlord who was running the place for his brother Bart.
• Richard Kline as Larry Dallas (née Larry Daliopolous) (entire run), the womanizing neighbor who was a used car salesman.
• Ann Wedgeworth as Lana Shields (1979-1980), the neighbor who pursued Jack, and in turn was pursued by Furley.