Guest Stars Aasha Davis as Various Characters Michael Coleman as Various Characters Mort Burke as Various Characters Craig Cackowski as Various Characters Greg Tuculescu as Various Characters J.T. Palmer as Various Characters Rich Fulcher as Himself (Narrator) Kirby Howell-Baptiste as Herself (Guest Host) Maria Blasucci as Claire Clairmont Evan Rachel Wood as Mary Shelley Jack McBrayer as Lord Byron Seth Rogen as Victor Frankenstein Elijah Wood as Percy Shelley Will Ferrell as The Monster Bennie Arthur as John Polidori Uncredited Tennile Marie Goosic as Elizabeth Frankenstein