Microsoft Game Studios and BioWare Corp. today announced the lineup of voice over actors for the highly anticipated release of “Mass Effect,” exclusively for Xbox 360. Seth Green, co-creator/executive producer/star of the Emmy-nominated “Robot Chicken,” who also stars on “Family Guy,” will voice the role of Joker in the upcoming epic space saga. Green has acted in film and television for over 25 years and will next be seen on the big screen in Disney’s "Old Dogs" with Robin Williams and John Travolta. He’s best known for starring roles in all three "Austin Powers" films, "The Italian Job," "Without a Paddle," "Party Monster," "Rat Race" and several previous television series including "Buffy the Vampire Slayer." Additional actors include Marina Sirtis (“Star Trek: The Next Generation”) as The Matriarch, Keith David (“Pitch Black,” “Crash”) as Captain David Anderson and Lance Henriksen (“Aliens,” “The Garden”) as Admiral Steven Hackett.

“Mass Effect” is scheduled to release on November 20th, 2007, will have an estimated retail price of $59.99, and is rated M for Mature. For more information, visit www.masseffect.com.