Press release from Syfy:

NEW YORK, NY – Defiance, the revolutionary transmedia event launching in Spring 2013, has commenced production on the series pilot in Toronto, ON.  An unprecedented partnership between Syfy and Trion Worlds, Defiance is the first-ever convergence of television and Massive Multiplayer Online gaming, featuring an interconnected world and storylines that will co-exist on both platforms.

Defiance stars Grant Bowler (Nolan), Julie Benz (Amanda Rosewater), Stephanie Leonidas (Irisa), Tony Curran (Datak Tarr), Jaime Murray (Stahma Tarr), Graham Greene (Rafe McCawley), Mia Kirshner (Kenya) and Fionnula Flanagan (Nicky).

The cast also features Jesse Rath as Alak Tarr, Justin Rains as Quentin McCawley, Nicole Munoz as Christie McCawley, Dewshane Williams as Tommy and Peter MacNeill as Clancy.

The pilot is directed by Scott Stewart (Legion, Priest) and written/executive produced by Rockne O’Bannon (Farscape), Kevin Murphy (Desperate Housewives, Caprica; Hellcats) & Michael Taylor (Battlestar Galactica).  Kevin Murphy serves as showrunner. Defiance is produced by Universal Cable Productions. 

Other mavens rounding out the first-rate production team and lending their creative prowess to the ambitious project are visual effects supervisor Gary Hutzel (Battlestar Galactica, Caprica), alien language and culture consultant David J. Peterson (Game of Thrones), music supervisor Bear McCreary (The Walking Dead, Battlestar Galactica), writers David Weddle and Bradley Thompson (Falling Skies, Battlestar Galactica) and three-time Oscar-winning costume supervisor Colleen Atwood (Alice in Wonderland, Chicago, Memoirs of a Geisha, Edward Scissorhands).

Defiance is a visionary enterprise in collaboration with Trion Worlds, with the Syfy series and Trion’s multi-platform shooter MMO poised to debut simultaneously.  Set in the near future, Defiance introduces a completely transformed planet Earth, inhabited by the human and alien survivors of a universal war.  Forced to co-habitate, the disparate group struggles to build a new society among the devastation. The dramatic tapestry of the series and the intense action of the game will exist in a single universe where their respective narratives will inform one another and evolve together into one overall story.