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Details of "Supernatural" spin-off called "Supernatural: Tribes" have emerged, shedding light on what the show will be about. Obtained by TVLine, the scoop reveals key characters of the potential new series.

"The de-facto star of the potential series" is Ennis Roth, who is described as being "likeable, strong-willed, resolute, with a strong sense of justice." The son of a cop who grew up in poverty, he's seeking revenge for the death of someone close to him after meeting Sam and Dean and learning that Chicago is run by five families of monsters. An African-American actor in his early 20s will likely end up taking on the role.

One of the monsters is David Hayden, a twenty-something shape-shifter from one of Chicago's ruling monster families. "He's been living as a human for some time, but a tragedy propels him back into the life."

David has a sister, Margo Hayden, who is described as a "professional, strong-willed, determined, ambitious" shape-shifter. The girl, who's is in her early 20s, is an "ex-punk rocker gone corporate who sets out to be the new head of the family in the wake of a tragedy."

In rival monster family there's Violet Durant, a werewolf and part of the wealthy, powerful Durant family. She will be entangled in a forbidden love with shape-shifter David. Violet's brother Julian is a "savagely handsome, strong, arrogant twentysomething" man who is also Ennis' arch nemesis.

Freddie Costa, "a world-weary cop in his 30s, has a soft spot in his heart for Ennis," but he has his own secret.

"Supernatural: Tribes" is one of the projects that have got pilot orders from The CW. The other shows are "Arrow" spin-off "The Flash", "iZombie" from "Veronica Mars" creator Rob Thomas, "Identity" and "Jane the Virgin".