Guardians of the Galaxy Vol. 2 writer/director James Gunn has confirmed that official new cast member Pom Klementieff is playing Mantis. The Oldboy actress was revealed to be a part of the sequel several months ago, but her exact role was withheld -- even from Marvel's announcement Tuesday morning.
The chararacters for the three other new actors in the film -- Kurt Russell, Elizabeth Debicki and Chris Sullivan -- have not been announced.
Guardians of the Galaxy Vol. 2 is scheduled to open in theaters May 5, 2017.