Bioware’s Mass Effect 2 itself is a game that’s going to sell, but having a bunch of celebrities to offer the voice acting never hurts – even if it’s not A class Hollywood celebrities we’re talking about (but still some really decent actors, to say the least!). Check out the official lineup of celebs that will take care that the voice acting doesn’t sound like your brother trying to impersonate Barack Obama:

The game features Emmy and Golden Globe Award-winning actor Martin Sheen (“The West Wing”, “Apocalypse Now”), 2009 Emmy Award-winner Shohreh Aghdashloo (“House of Saddam”), comedic actor Seth Green (“Austin Powers”), “Chuck” stars Yvonne Strahovski and Adam Baldwin, Keith David (“Crash”) and sci-fi favorites Michael Dorn (“Star Trek: Deep Space Nine”) Tricia Helfer (“Battlestar Galactica”), Michael Hogan (“Battlestar Galactica”) and Carrie-Anne Moss (“The Matrix”).

“Emotionally engaging narrative is a key design pillar for BioWare, and the top-notch voice talent in Mass Effect 2 helps drive this goal,” said Dr. Ray Muzyka, co-founder, BioWare and Group General Manager of the RPG/MMO Group of EA. “Credible, powerful personalities are vital to delivering a compelling story experience in BioWare’s games, and we have assembled an amazing ensemble cast that surpasses the very high bar set in the original Mass Effect!”

Mass Effect 2 will hit our hard disks on January 26 in 2010 and we surely hope that it’s more about it than some cool voiceovers!