Question: guardians of the galaxy 2 who is mainframe?
Answer: 2. Comic-book-movie diehards love their post-credits teaser scenes. But for Marvel's Guardians of the Galaxy Vol. ... Miley Cyrus, according to Guardians director James Gunn, has an uncredited voice role as Mainframe, a robotic warrior designed by Iron Man, in the brief teaser scene following the film.