The CW has tracked down the two leads for its planned Supernatural spinoff.

According to The Hollywood Reporter, Lucien Laviscount (Episodes) and Nathaniel Buzolic (The Vampire Diaries) will star in the backdoor pilot for Supernatural: Tribes, which is set to air April 29 as an episode of the network's long-running drama Supernatural.

Penned by Supernatural writer/producer Andrew Dabb, the pilot is involves mafia-like monster families who secretly run the Chicago underworld and the new hunter who's trying to rid the city of all of its supernatural elements.

Laviscount stars as Ennis Roth, who becomes a hunter after his fiancee becomes a victim of the monster war. Buzolic co-stars as David Hayden, a shapeshifter from one of the ruling families who gave up the monster life to live as a human.

Dabb will executive produce alongside Supernatural creator Eric Kripke and series veterans Robert Singer, Jeremy Carver and McG. Carver serves as showrunner, while Singer will direct the pilot.