EXCLUSIVE: Scottish actress Laura Fraser has landed a lead role on Showtime’s drama pilot Homeland. Additionally, In Treatment standout Dane DeHaan has joined HBO’s vampire drama True Blood as a recurring, while Rebecca Wisocky has been cast for a key guest spot in the fourth season premiere.

Homeland , from 24 executive producers Howard Gordon and Alex Gansa, centers on Marine Sergeany Scott Brody, who returns home eight years after going missing in Iraq, and Carrie Anderson (Claire Danes), a driven CIA officer who suspects he might be plotting an attack on America. Fraser (A Knight’s Tale) will play Jessica Brody, Scott Brody’s smart, strong wife. Production on the pilot, whose cast also includes Mandy Patinkin, is slated to begin Jan. 10 in Charlotte, N.C.

On True Blood, DeHaan will play Timbo, one of the teens Jason (Ryan Kwanten) takes care of in Hotshot. The part extends DeHaan’s relationship with HBO. He plays Jesse on the current season of the network’s drama In Treatment. Wisocky (90210) will play Queen Mab, who is described as an elegant beauty who presides over a fantasy land and also has a temper. Wisocky will next be seen in Atlas Shrugged.