Lorne Michaels

Creator and producer of Saturday Night Live for NBC; he's also listed as an Executive Producer on 30 Rock. Has also occasionally appeared on SNL as well, most notably in the infamous early segments where he offered The Beatles $3000 to reunite on the program. (John and Paul considered it one night, apparently, but decided not to).

May have inspired Dr. Evil from the Austin Powers films, Jack Donaghy of 30 Rock, and Don Roritor in the Kids in The Hall movie Brain Candy:

"Mike Myers: Anyways, you know what? You know, Dr. Evil's nothing like you, Lorne. I mean, you don't have your "henchmen" kill people.

Lorne Michaels: No... no, not since the seventies."