Glenn Close is finalizing a deal to join the cast of Marvel's Phase Two ensemble Guardians of the Galaxy.

The actress will play a leading member of the Nova Corps intergalactic space patrol, although the character's identity has not been revealed. She joins a cast that includes Chris Pratt (Peter Quill), Dave Bautista (Drax the Destroyer), Zoe Saldana (Gamora), Michael Rooker (Yondu), Lee Pace (The Collector) and Ophelia Lovibond as one of The Collector's henchmen.

James Gunn is directing from a screenplay he co-wrote with Chris McCoy and Nicole Perlman. No production schedule has been given for this highly-anticipated superhero adventure.

RELATED: Captain Marvel Trolls Take a Punch in Latest Avengers Comic

Glenn Close most recently starred in Albert Nobbs and on the TV series Damages. The actress recently wrapped production on Low Down, alongside Mark Ruffalo.