Excerpt from "Ask Ausiello: Spoilers on 'Smallville,' 'Good Wife,' 'Glee,' 'Grey's,' Fringe,' and more!"
Question: Please tell me it isn’t true. Please tell me Ruby won’t be in the 100th episode of Supernatural! I’ll give you ice cream with sprinkles on top. —Ann
Ausiello: No, Ruby won’t be in the 100th episode (titled “Point of No Return” and airing April 15). But Zachariah (Kurt Fuller) will be.