(written from a Production point of view)
Loken was born in Ghent, New York. Having been a model since the age of fifteen, Loken had her breakthrough acting role as the deadly T-X machine in the 2003 film Terminator 3: Rise of the Machines, co-starring David Andrews, Earl Boen, Eric Ritter, and Carolyn Hennesy. Prior to that, she was a regular on a number of television series, including Unhappily Ever After (co-starring with Nikki Cox), Pensacola: Wings of Gold, and Mortal Kombat: Conquest.
She also had a recurring role on the short-lived Philly, during which she worked alongside Jim Beaver, Bill Cobbs, Ron Canada, Joanna Cassidy, Steven Culp, Alan Dale, Michael Durrell, Gregory Itzin, Deborah Lacey, Sharon Lawrence, Jordan Lund, Jeff Ricketts, Michael Bailey Smith, and Scott Alan Smith. She has also made appearances on Law & Order, Lois & Clark: The New Adventures of Superman (with Teri Hatcher and Dwight Schultz), Boy Meets World (with Lindsay Ridgeway), and Sliders, among others. She also starred in the Sci-Fi Channel series Painkiller Jane as the titular Jane Vasco.
Her other film credits include the 2001 thriller Panic, co-starring Alexander Enberg and Tucker Smallwood, and the 2005 video game-based action film BloodRayne, in which she played the lead role opposite T.J. Storm. She also co-starred with Ron Perlman and John Rhys-Davies in another video game-based film, In the Name of the King: A Dungeon Siege Tale, in 2007.