The late showbiz veteran Barney Martin famously played Jerry Seinfeld’s dad, Morty, on the hit TV show "Seinfeld." But before he played a crotchety father, Barney served as a New York City police detective for 20 years. Legend has it that Barney had a talent for making police commissioners laugh, and that inspired him to moonlight as a writer for various comedy shows. He then moved on to Broadway and film. —XFINITY Entertainment Staff (Photo: Getty)
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