Richard Speight Jr. and Danneel Ackles return to Supernatural in the April 12 episode of the series which is called “Bring ‘Em Back Alive.”
Find an official description with spoilers below!
DANNEEL ACKLES AND RICHARD SPEIGHT JR. RETURN – Lucifer (Mark Pellegrino) rules over heaven but things aren’t going exactly as planned, exasperating his first lady, Jo (guest star Danneel Ackles). Sam (Jared Padalecki) and Castiel (Misha Collins) are perplexed by the return of Gabriel (guest star Richard Speight Jr.). Meanwhile, Dean (Jensen Ackles) gets one step closer to finding Mary and Jack. Amyn Kenderali directed the episode written by Brad Buckner & Eugenie Ross-Leming (#1318). Original airdate 4/12/2018.
UPDATE: we now have some photos… enjoy!