Ophelia Lovibond (Mr. Popper’s Penguin, 4.3.2.1.) is the latest actor to enter talks to join the cast of the upcoming Marvel stand-alone adventure, Guardians of the Galaxy, according to THR.

Not much is known about her character apart from the fact that she will be playing a henchman to The Collector, who is one of the Elders of the Universe that the Guardians encounter in the sci-fi adventure. It’s not clear if this is a major supporting role, or whether it’ll just be a brief appearance.

Lovibond joins Chris Pratt as Star Lord, Dave Bautista as Drax the Destroyer, Michael Rooker as Yondu and Zoe Saldana, who is in talks for Gamora. Guardians of the Galaxy will start shooting in June in the UK with James Gunn directing, and will be in cinemas summer 2014.

While Sam Rockwell spends most of his time in supporting roles, occassionally he gets to take on a meaty leading role. He’s got just such a part in A Single Shot, which recently started shooting and has now announced a rather rocking supporting cast, with Deadline reporting that William H. Macy, Jeffrey Wright, Joe Anderson, Jason Isaacs, Kelly Reilly, Ophelia Lovibond, and Melissa Leo are all onboard.

Based on Matthew F. Jones’s novel (who also wrote the screeplay), A Single Shot is the story of a dark and deadly game of cat and mouse, prompted by the tragic death of a young girl. Rockwell plays a wild-game poacher who makes a fatal mistake that leaves him with a suitcase full of blood money and hardened killers on his trail. As the hunter becomes the hunted, John Moon is forced to defend his family and fight for his life.

David M. Rosenthal is directing.