Board Thread:Spoilers!/@comment-1916997-20150313202428/@comment-5106672-20150505160900

It might be that they either had an agreement with some of the guest stars not to reveal them, or that they themselves asked not to be put in the press release for suspance. I remember when Jim Beaver reprised his role as Bobby Singer in Supernatural, they agreed not to include him either on the opening credits nor inthe press release to surprise the fans.