The character's father has been referenced many times, of course, as he abandoned his son at an early age and those actions have played a clear role in shaping the bitter, sarcastic Jeff Community fans have grown to know and love.
So... who should come on board in this key role? Bill Murray has been rumored, with Joel McHale admitting he's the actor's hero and ex-showrunner Dan Harmon even joking about this possibility last year.
We'll come up with our own list shortly, but have at it, TV Fanatics: Submit your casting suggestions for Mr. Winger now!
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