Marvel actor Karen Gillan has addressed potentially reprising her role as Nebula, who was last seen in Guardian of the Galaxy Vol. 3.Speaking to The Direct, Gillan hinted at being in talks with MCU bosses but stopped short at offering further information."You know I can't tell you that," she said, laughing. "I have Marvel snipers on me. I have definitely spoken to them. Whether or not that was about making another appearance or not is a different story... Basically, no spoilers over here."