Guest Stars Ben Geurens as The Necromancer Olivia Liang as Alyssa Chang Bianca Kajlich as Sheriff Machado Giorgia Whigham as Jade T.J. Ramini as Dr. Robin Goodfellow Co Starring Elijah B. Moore as Wade Rivers Byron Wigfall as Singing Lockwood Shelby Warren as Singing Sheriff Uncredited Candice Accola voices Caroline Forbes