John Ritter, American actor and producer (died 2003)

Johnathan Southworth Ritter was an American comedian and actor. He was a son of the singing cowboy star Tex Ritter and the father of actors Jason and Tyler Ritter. He played Jack Tripper on the popular ABC sitcom Three's Company (1977–1984), and received a Primetime Emmy Award and a Golden Globe Award for the role in 1984. Ritter briefly reprised the role on the spin-off Three's a Crowd, which aired for one season, producing 22 episodes before its cancellation in 1985.

September 17 is the 260th day of the year in the Gregorian calendar; 105 days remain until the end of the year.