Réalisation: William Lau
En faisant des recherches sur ses ancêtres, Frankie fait un voyage dans le temps qui l'amène en 1814. C'est l'année où une expérience malheureuse fusionne 8 vampires et crée ainsi 4 nouveaux monstres ! Les hybrides tentent de contrôler leurs deux moitiés de pouvoirs mais ce n'est pas aussi facile... et sèment la zizanie dans Monster High !
Haviland Stillwell
Avia Trotter (voice)
Laura Bailey
Headmistress Bloodgood / Lagoona Blue (voice)
Paula Rhodes
Iris Clops / Sirena Von Boo (voice)
Kate Higgins
Frankie Stein (voice)
America Young
Howleen Wolf / Toralei Stipe (voice)
Erin Fitzgerald
Abbey Bominable / Rochelle Goyle / Spectra Vondergeist (voice)
Geeg Friedman
Bonita Femur (voice)
Salli Saffioti
Clawdeen Wolf / Cleo de Nile (voice)
Evan Smith
Deuce Gorgon / Gil Webber (voice)
Debi Derryberry
Draculaura (voice)
Audu Paden
Ghoulia Yelps / The Creature / Manny Taur (voice)
Jonquil Goode
Gigi Grant / Twyla (voice)
Cam Clarke
Heath Burns / Mr. Rotter / Hoodude Voodoo (voice)
Dave B. Mitchell
Hexicah Steam (voice)
Cindy Robinson
Jackson Jekyll / Operetta (voice)
Stephanie Sheh
Jinafire Long (voice)
Luis Gonzalez
Mr. Where (voice)
Josey Montana McCoy
Neighthan Rot / Sparky / Victor Frankenstein (voice)
Julie Maddalena
Robecca Steam / Venus McFlytrap (voice)
Haviland Stillwell
Avia Trotter (voice)
Laura Bailey
Headmistress Bloodgood / Lagoona Blue (voice)
Paula Rhodes
Iris Clops / Sirena Von Boo (voice)
Kate Higgins
Frankie Stein (voice)
America Young
Howleen Wolf / Toralei Stipe (voice)
Erin Fitzgerald
Abbey Bominable / Rochelle Goyle / Spectra Vondergeist (voice)
Geeg Friedman
Bonita Femur (voice)
Salli Saffioti
Clawdeen Wolf / Cleo de Nile (voice)
Evan Smith
Deuce Gorgon / Gil Webber (voice)
Debi Derryberry
Draculaura (voice)
Audu Paden
Ghoulia Yelps / The Creature / Manny Taur (voice)
Jonquil Goode
Gigi Grant / Twyla (voice)
Cam Clarke
Heath Burns / Mr. Rotter / Hoodude Voodoo (voice)
Dave B. Mitchell
Hexicah Steam (voice)
Cindy Robinson
Jackson Jekyll / Operetta (voice)
Stephanie Sheh
Jinafire Long (voice)
Luis Gonzalez
Mr. Where (voice)
Josey Montana McCoy
Neighthan Rot / Sparky / Victor Frankenstein (voice)
Julie Maddalena
Robecca Steam / Venus McFlytrap (voice)
Haviland Stillwell
Avia Trotter (voice)
Laura Bailey
Headmistress Bloodgood / Lagoona Blue (voice)
Paula Rhodes
Iris Clops / Sirena Von Boo (voice)
Kate Higgins
Frankie Stein (voice)
America Young
Howleen Wolf / Toralei Stipe (voice)
Erin Fitzgerald
Abbey Bominable / Rochelle Goyle / Spectra Vondergeist (voice)
Geeg Friedman
Bonita Femur (voice)
Salli Saffioti
Clawdeen Wolf / Cleo de Nile (voice)
Evan Smith
Deuce Gorgon / Gil Webber (voice)
Debi Derryberry
Draculaura (voice)
Audu Paden
Ghoulia Yelps / The Creature / Manny Taur (voice)
Jonquil Goode
Gigi Grant / Twyla (voice)
Cam Clarke
Heath Burns / Mr. Rotter / Hoodude Voodoo (voice)
Dave B. Mitchell
Hexicah Steam (voice)
Cindy Robinson
Jackson Jekyll / Operetta (voice)
Stephanie Sheh
Jinafire Long (voice)
Luis Gonzalez
Mr. Where (voice)
Josey Montana McCoy
Neighthan Rot / Sparky / Victor Frankenstein (voice)
Julie Maddalena
Robecca Steam / Venus McFlytrap (voice)