I always appreciate a punny episode title, and it seems the March 23 episode of The CW's Supernatural has a very fun pun for its title.
Here's the official description with spoilers that was just released by the network. Yes, Castiel (Misha Collins) is FINALLY back!
MISHA COLLINS RETURNS! --- Lucifer (guest star Mark Pellegrino) drives Sam (Jared Padalecki) to the breaking point and Sam ends up in a mental hospital. Desperate to save his brother, Dean (Jensen Ackles) calls every hunter he knows for help. One of the hunters gives him the name of a healer who turns out to have a very familiar face (guest star Misha Collins). Robert Singer directed the episode written by Sera Gamble (#717).