TRUE BLOOD vamper Stephen Moyer and Lily Collins of 90210 have joined PRIEST, the Scott Stewart helmed thriller.

Screen Gem’s PRIEST, written by Cory Goodman, stars Paul Bettany, Cam Gigandet and Maggie Q. The chiller involves a warrior priest who turns against the church to track down a murderous band of kidnapping vampires.

Variety reports Moyer will play the mortal brother of the protagonist. The HBO star is repped by ICM and Luber/Rocklin. Michael De Luca will produce alongside Josh Donen and Mitchell Peck.

PRIEST begins shooting today, August 24th.