Remember Steven Williams' Rufus from Season 3? According to Matt Mitovich from TV Guide, Rufus is back.
"I remember the Supernatural producers saying last summer that we'd be seeing Steven Williams' Rufus this season — yet so far, nothing. Is that still happening? — Alexandra
MATT: In a word, sorta. The boys will hear from Rufus in Episode 21, which is titled "When the Levee Breaks" and airs May 7."
You may know Steven Williams from The X Files as Mr X.