Katey Sagal & John Ritter: 8 Simple Rules John Ritter of Threes Company and Katey Sagal of Married With Children emerged from the shadows to portray the parents of three rowdy children on 8 Simple Rules. The dynamic between a popular teenage girl and her overprotective father kept viewers interested. When John Ritter died suddenly, the show remained on the air for two years without him. Grade: Success. The show, however, was finally canceled because of sagging ratings after Ritters death.
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