As the body count mounts in 'True Blood,' the producers keep adding fresh cast members. Last month we reported that Fiona Shaw and Courtney Ford had joined the cast for Season 4, and now we hear that Dane DeHaan ('In Treatment') is also heading to Bon Temps.

According to deadline.com DeHaan has signed on for a recurring role as Timbo, one of the teens Jason (Ryan Kwanten) takes care of in Hotshot.

Rebecca Wisocky ('90210') has landed a guest spot in the Season 4 premiere episode, playing the key role of Queen Mab, who's described as "an elegant beauty who presides over a fantasy land and also has a temper."

Deadline.com also reports that the Showtime series about the C.I.A., 'Homeland,' has added to its principals with the casting of Scottish actress Laura Fraser ('A Knight's Tale,' 'Casanova').

'Ghost Whisperer's' Jamie Kennedy will guest on an upcoming episode of 'Eureka' season 4. Kennedy will play Dr. Ramsey in the episode, who develops an oxygen technology that leaks into the Eureka atmosphere and threatens to destroy the entire town. The episode airs Fri., July 30 on Syfy. [SciFi Wire]

More casting news after the jump.