Board Thread:Spoilers!/@comment-11464223-20140331174637/@comment-1916997-20140401033430

At this point Walsh being the Wizard is looking more likely, although we can't rule out anything based on the press release, as they don't have to put everyone credited for the episode in it, so as not to spoil things. The better question is are we going to see the actual wizard, because in the book (and the 1939 movie) the wizard hides behind avatars when meeting with people (specifically a giant head, a beautiful woman, a many limbed monster, and a ball of fire), of course he still talked to people in these forms, so someone will at least need to provide a voice for the character.