John Ritter
John Ritter was described by Don Knotts as the "greatest physical comedian on the planet." On September 11, 2003, the Three's Company star was rehearsing for a sitcom when he collapsed on set. Doctors diagnosed Ritter with an aortic dissection, but unfortunately, it was too late—he passed away during surgery.
Ritter's Three's Company co-star Suzanne Somers said, "I'm so sad for the family. We lost a good one, it was so unfinished."
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