Alicia Witt Supernatural Castiel

Alicia Witt Teases Her Supernatural Role — As an Old Foe of [Spoiler]'s

Castiel is about to get an unwelcome blast from the past on Supernatural.

Alicia Witt will be appearing on an upcoming episode of The CW’s demon-hunter drama, TVLine has confirmed. The actress announced the news herself on Tuesday via Twitter:

Witt says she’s been in Vancouver filming her role on the show, and is tight-lipped about her character, except to say that she “has a relationship with Castiel.” Witt quickly followed up to say that she “did not specify what *kind* of relationship” her character has with Cas, but TVLine has since confirmed that Witt’s character is named Lily Sunder, and she’s an old enemy of Castiel’s.

Witt had a memorable appearance on The Walking Dead last season as villainous survivor Paula; in fact, she had to cancel an appearance at Atlanta’s Walker Stalker Con to shoot her Supernatural role. She’s also had recurring roles on ABC’s Nashville and FX’s Justified in recent years, and she’s set to reprise her role as Gersten Hayward in Showtime’s upcoming Twin Peaks revival.

Hit the comments and chime in, Supernatural fans: Who is Lily Sunder, and why are she and Castiel sworn enemies?