Surprise! On the #4 position, there’s Josh Peck.
The heck is wrong with you, Amy? Nickelodeon guy, really? Drake & Josh??? — Just hear me out. He may be a Nick dude, but he managed to participate on two very-non-Nick-friendly films~~~ Mean Creek (with fellow who didn’t make it, Rory Culkin), and he even dared to appear on Havoc (with Anne Hathaway, Bijou Phillips and Joseph Gordon-Levitt)… and that’s when he was still working for Nick.
Last year, he worked on The Wackness sharing the screen with Ben Kingsley, Famke Janssen, Mary-Kate Olsen and fellow the 20 to watch, Olivia Thirlby.
Peck has lost weight, grew up (he is even taller than his Drake & Josh castmate/friend), so he’s got that “not-looking-bad-yourself” thing in his favor. He just needs to stay away from so much voice work and Nick cameos (for a while) and begin pimping the acting chops.