Supernatural, 9x21, "King of the Damned," aired 6 May 2014. Gavin MacLeod (Theo Devaney). Gavin comes from the past, 291 years ago. Abaddon (Alaina Huffman): "Not terribly quick, is he?" Abaddon makes the curtains part and the doors open onto the balcony. Gavin goes out onto the balcony. Gavin: "Holy mother of God! We're amongst the stars! Are we in Heaven, then? You must be angels!" Crowley, played by Mark Sheppard, & Abaddon: "Wow."