Nebula – Karen Gillan
The Scottish actress Karen Gillan has starred in several hit sci-fi movies. She played the companion to the 11th Doctor Who and portrayed Nebula, a blue-skinned alien warrior, in the Marvel Cinematic Universe. Her first appearance as Nebula was in 2014’s Guardians of the Galaxy.
She also shaved her hair off as part of her on-screen transformation, like many of the other celebrities on our list. According to reports, each day’s makeover took over four hours to apply and was eventually trimmed down to just two and a half hours.