From SyFy's official announcement
The dramedy's new season welcomes an all-new regular cast member, James Callis (Battlestar Galactica) as "Dr. Grant."
I really like Callis on BSG (he played Gaius Baltar, for those who don't recognize the name). So I'm cautiously optomistic about this.
Callis will also have a recurring role on FlashForward later this season. http://tv.ign.com/articles/107/1072608p1.html