3.
Jerry Trainor as Spencer on iCarly
4.
Similarly, Phill Lewis as Mr. Moseby in The Suite Life of Zach and Cody
5.
Matthew Lillard as Shaggy in Scooby-Doo and Scooby-Doo 2: Monsters
6.
Dylan O'Brien as Stiles on Teen Wolf
7.
Tom Cruise as Stacee Jaxx in Rock of Ages
8.
Margot Robbie as Harley Quinn in Suicide Squad
9.
Rachel Bloom as Rebecca on Crazy Ex-Girlfriend
10.
Troian Bellisario as Spencer on Pretty Little Liars
11.
Amy Adams as Giselle in Enchanted
12.
Jennifer Hudson as Effie in Dreamgirls
13.
Tatiana Maslany as Sarah, Beth, Rachel, Cosima, Alison, Helena, Krystal, Mika, and more in Orphan Black
14.
Jim Carrey as the Grinch in How the Grinch Stole Christmas
15.
Emma Stone as Olive in Easy A
16.
Joseph Morgan as Klaus on The Vampire Diaries
17.
Amanda Bynes as Viola in She’s the Man
18.
LiIi Reinhart as Betty on Riverdale
19.
And finally, Mark Hamill as The Joker in Batman: The Animated Series and a TON of other stuff