Annabeth Gish

The X-Files alum Annabeth Gish is the latest actress to land a magical role on Once Upon a Time, TVGuide.com has learned. 

Gish will play Anita, the charismatic and mysterious leader of a pack of humans who, like Red (Meghan Ory), turn out to be wolves. The West Wing vet will appear in Episode 7 of the new season.

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She joins previously announced guest stars, including Jorge Garcia, Jamie Chung, Colin O'Donoghue, Sinqua Walls and Sarah Bolger, among others.

Once Upon a Time returns Sunday at 8/7c on ABC.