With Gamora dead, could Nebula take her role in Guardians of the Galaxy? Karen Gillan has more than proved herself capable of being in a lead role in Jumanji: Welcome To The Jungle, and from a character perspective it would make sense. Nebula could be trying to fight in her sister's memory. From the first film to now she has gone from villain to sympathetic anti-hero. What do you think? Could Nebula become a Guardian of the Galaxy?