March 11, 2011 01:39:41 GMT
The 'Beverly Hills 90210' alum will not only guest star but also direct an episode while the 'Terminator' alum would play a lead in the vampire drama.
Jason Priestley and Thomas Dekker have both landed roles on TV. The former, who has been staying behind the camera for several years, is to do a four-episode stint on Syfy's "Haven" while the latter, whose last show "Terminator: The Sarah Connor Chronicles" got canceled, would take a regular role in The CW's new pilot "Secret Circle".
In "Haven", Priestley would play Chris Weekly, a brilliant, principled but anti-social marine biologist who must deal with an affliction most would consider a blessing. TV Line said his arc falls during the show's upcoming second season. In addition, he has also signed up to direct an episode of the supernatural drama.
Meanwhile, Dekker plays the male lead in the vampires series based on "The Vampire Diaries" author, L.J. Smith. His character is named Adam, the oldest member of a top-secret coven and a love interest for Cassie who is played by "Life Unexpected" alumna, Brittany Robertson.