Karen Gillan: 'Guardians of the Galaxy' Star!

Karen Gillan is a beauty in blue as she arrives at the premiere of Star Trek Into Darkness held at BFI IMAX in London earlier last month.

It was just announced that the 25-year-old actress has joined Guardians of the Galaxy, according to THR.

PHOTOS: Check out the latest pics of Karen Gillan

Karen will play the female lead villain opposite Lee Pace and Michael Rooker. Glenn Close, Chris Pratt, Zoe Saldana and Dave Bautista also star in the Marvel movie.

10+ pics inside of Karen Gillan…