Special Guest Stars Matt Ryan as John Constantine Matt Ryan as King Konstentyn Guest Stars Adam Tsekhman as Agent Gary Green Sisa Grey as Mona Wu Jane Carr as Fairy Godmother Co Starring Devyn Dalton as Púca James Kot as Agent Neil McNeil Madeleine Kelders as Agent Powell Cameron Waters as Agent Dietel Darcy Hula as Homeless Man Kailyn Olsen as Shield Maiden Naomi Levi as Agent Reyes