Stephen J. Cannell
Creator of such TV shows as The Rockford Files, The A-Team, The Greatest American Hero, Hardcastle and McCormick, 21 Jump Street, and The Commish (but not Hunter, one of the few series from his company that he didn't create or co-create - Profit is also in this really small club). Suffered from dyslexia. Famously appeared in his Vanity Plates on a typewriter and also as the on camera host of Scene Of The Crime; was a novelist.
Also played poker with a fictional crime writer. His seat, chips, and whiskey remain at his spot to this day.