Well, look what the Darkness dragged in.

Supernatural has tapped The Mentalist’s Emily Swallow to join the Season 11 cast in a significant (and malevolent) recurring role, TVLine has learned exclusively.

Swallow — whose pre-Mentalist credits include arcs on Ringer and Southland — will play Amara, a femme fatale who is both seductive and sinister (when need be). It’s not clear when exactly Amara will be introduced, or what connection (if any) she may have to the just-released Darkness.

At Comic-Con earlier this month, the Supernatural cast and producers revealed that Season 11 (bowing Oct. 7 on The CW) will find Sam and Dean getting back to their roots. “[We’re] going back to the original format of having both brothers unaffected, meaning not drinking demon blood, not with the Mark of Cain on their arm,” he said. “[It’s] just Sam and Dean as Sam and Dean, fighting a common target.”

Added EP Jeremy Carver: “This year, we are going to have a little bit more of an epic feel with a Big Bad and a real quest for the brothers to unite.”

Thoughts on Swallow’s casting? Do you think she’s the Big Bad that Carver alluded to at SDCC? Hit the comments!