Alec Baldwin in 30 Rock

Alec Baldwin was a massive movie star in the late '80s and early '90s, defining the elusive heartthrob in such thrillers as The Hunt for Red October and Malice. He hit a high again in 2003 with an Oscar nomination for romantic drama The Cooler. But no one knew how funny the actor could be until, in 2006, he debuted his iconic role as Jack Donaghy alongside Tina Fey in the lauded comedy 30 Rock.