Danneel Harris-Ackles

Danneel Harris-Ackles (née Elta Danneel Graul; b. March 18, 1979) is an American actress and model.

She will guest star in Supernatural as Sister Jo.

Trivia

 * Danneel is the second relative of Jensen to appear on the show, following Alan Ackles.
 * Danneel's brother Gino and niece Valerie appeared as unnamed demons in "Soul Survivor".