From Redhead To Blue Everywhere

Red-haired actress Karen Gillan transformed into a blue robotic alien for Guardians of the Galaxy. Her minor role was so popular that she appeared beside Iron Man in Avengers: Endgame. Nebula’s design wasn’t painted on Gillan; it was a claustrophobic costume.
Gillan told Variety that the suit was glued to her, which made it difficult to move her face. “I think it’s stopping me from overacting,” she added. After filming, Gillan said that she would watch behind-the-scenes footage of Zoe Saldana’s making getting done so she felt like hers “wasn’t so bad.”