‘Supernatural’ Spinoff Casts ‘Heroes’ Alum Danielle Savre, ‘Burn Notice's’ Stephen Martines

'Supernatural' Spinoff Casts 'Heroes' Alum Danielle Savre, 'Burn Notice's' Stephen Martines

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They join Nathaniel Buzolic, Sean Faris and Lucien Laviscount on the backdoor pilot titled “Tribes”

The CW's “Supernatural” spinoff titled “Tribes” has added two more actors in lead roles.

Danielle Savre and Stephen Martines has been cast as Margo and Detective Freddie Costa, respectively, on the backdoor pilot.

“Supernatural: Tribes” follows the various mafia-esque monster families that, unknowingly to humans, “run” the underbelly of Chicago. These families are being tracked by a newly-minted Hunter, who's trying to stop them and rid Chicago of anything or anyone supernatural.

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Margo is the acting head of the leading shapeshifter family. Ex-punk rocker-turned-corporate professional Margo feels threatened only by the return of her prodigal brother, David (Nathaniel Buzolic), into the family.

Detective Freddie Costa is a world-weary Chicago cop who serves as a mentor to Ennis (Lucien Laviscount), but is also secretly on the payroll of one of the powerful monster families.

Represented by Talent Works and Zero Gravity Management, Savre is best known as Jackie Wilcox from NBC's “Heroes.” Her other television credits include Nick at Nite's “Hollywood Heights” and MTV's “Kaya.”

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Martines most recently played Carlos Cruz on USA Network's “Burn Notice.” His other TV credits include a recurring role on “The Vampire Diaries” and TNT's “The Closer.” He's represented by Global Artists Agency, Luber Roklin Entertainment and firm Stone, Meyer, Genow, Smelkinson and Binder.

“Supernatural: Tribes” will air as an episode of “Supernatural” on April 29.

Andrew Dabb is writing and executive producing, with Eric Kripke, Robert Singer, Jeremy Carver, McG also executive producing. Robert Singer is directing the project, which comes from Warner Bros. Television.