Emma Caulfield is the latest guest star to join ABC’s much buzzed about fairytale-themed series “Once Upon a Time.” The 38-year-old looker will play the kid-eating blind witch from Hansel and Gretel in the show’s ninth episode.

Caulfield, who first broke into what we insiders call show business playing Brandon Walsh’s girlfriend on “Beverly Hills, 90210,” is best known to horror fans for her portrayal of vengeance demon Anya Jenkins on The WB’s “Buffy the Vampire Slayer.”

Her first lead role in a feature film was in the 2003 Jonathan Liebesman (Battle: Los Angeles) Tooth Fairy frightener Darkness Falls. She hasn’t done a lot of horror since then, but will soon be seen in the indie-thriller Removal, opposite Kelly Brook (Piranha 3-D) and Billy Burke (Drive Angry 3-D).

“Once Upon a Time” was created by “LOST” executive producers Edward Kitsis and Adam Horowitz. The show  follows Emma Swan (Jennifer Morrison), daughter of Snow White (Ginnifer Goodwin) and Prince Charming (Josh Dallas), as she attempts to set free the small New England town of Storybrooke from an Evil Queen’s (Lana Parilla) grasp.

“Once Upon a Time” premieres Sunday, Oct. 23 at 8pm.