1. Ralph Fiennes as Lord Voldemort
Frederick M. Brown / Getty Images, Warner Bros.
In the Harry Potter series.
2. Bill Skarsgård as Pennywise the Clown
Jamie McCarthy / Getty Images, Warner Bros.
In It.
3. Adewale Akinnuoye-Agbaje as Killer Croc
Chris Jackson / Getty Images, Warner Bros.
In Suicide Squad.
4. Meryl Streep as Margaret Thatcher
Steven Lovekin / Getty Images, 20th Century Fox
In The Iron Lady.
5. Jennifer Lawrence as Mystique
Jason Merritt / Getty Images, 20th Century Fox
In the X-Men series.
6. Karen Gillan as Nebula
Andrew Toth / Getty Images, Walt Disney Studios
In Guardians of the Galaxy.
7. Nicole Kidman as Virginia Woolf
Jon Kopaloff / Getty Images, Paramount Pictures
In The Hours.
8. Heath Ledger as the Joker
Stephen Lovekin / Getty Images, Warner Bros.
In The Dark Knight.
9. Emma Thompson as Professor Trelawney
Carlos Alvarez / Getty Images, Warner Bros.
In the Harry Potter series.
10. Oscar Isaac as Apocalypse
Nicholas Hunt / Getty Images, 20th Century Fox
In X-Men: Apocalypse.
11. Charlize Theron as Aileen Wuornos
Evan Agostini / Getty Images, Newmarket Films
In Monster.
12. Jay Hernandez as Diablo
Frazer Harrison / Getty Images, Warner Bros.
In Suicide Squad.
13. Jim Carrey as the Grinch
Chris Weeks / Getty Images, Universal Pictures
In How the Grinch Stole Christmas.
14. Brad Pitt as Benjamin Button
Gabriel Buoys / Getty Images, Warner Bros.
In The Curious Case of Benjamin Button.
15. Rooney Mara as Lisbeth Salander
Angela Weiss / Getty Images, Columbia Pictures
In The Girl With the Dragon Tattoo.
16. Danny DeVito as the Penguin
Kevin Winter / Getty Images, Warner Bros.
In Batman Returns.
17. Steve Carell as John du Pont
Pascal le Segretain / Getty Images, Sony Pictures Classics
In Foxcatcher.
18. Halle Berry as Jocasta Ayrs
Jamie McCarthy / Getty Images, Focus Features
In Cloud Atlas.
19. Tilda Swinton as Madame D
Ian Gavan / Getty Images, Fox Searchlight Pictures
In The Grand Budapest Hotel.