Abbey Bominable (voiced by Erin Fitzgerald) is the sixteen-year-old daughter of the Yeti and the cousin of Marisol Coxi. She is in a relationship with Heath Burns, who she claims "makes her laugh". During the school week, Abbey stays at Headless Headmistress Bloodgood's house. Abbey's fashions always incorporate ice and fur thematics. Her hair is white with pink, blue and purple streaks through it and often shimmering strands as well. Abbey has yeti-tusks that pop up from the bottom of her mouth, touching her upper lip. Abbey also displays psychokinetic abilities, or the power to form and manipulate ice, being a yeti monster. Shiver is Abbey's pet baby woolly mammoth, with blue skin and white fur.
Casta Fierce (voiced by Kate Higgins as a teenager, Francesca Capaldi as a child) is the daughter of the witch Circe. Her name is a pun on Beyoncé's alter-ego "Sasha Fierce". She is another pop-star whose friends are fellow pop-star Catty Noir, and Operetta. She is nineteen and therefore no longer a student at Monster High (if she ever was). She was revealed to have her very own band known as "Casta and the Spells" revealed in the episode "Casta Vote". She is also very popular at the school Monster High.
Clawdia Wolf (voiced by Jonquil Goode) is a werewolf who is the eldest named wolf sibling (It's implied there are several older siblings but they've not yet been given canon names). She formerly attended Monster High. She is an aspiring screamwriter studying In London. Her family is very important to her, and she misses them while she is away at school. Unlike many of her Wolf siblings, she does not have any athletic ability and is actually quite clumsy. She wears glasses and has mustard-yellow hair, perhaps characterized as a blonde. She is the first Monster High doll to utilise an open mouthed sculpt, Clawdia dolls have a wide smiling mouth with moulded teeth.
Dayna is the daughter of Davy Jones. She has blonde hair, blue eyes, and wears a hat in the shape of an open treasure chest.
Gilda Goldstag is a humanoid version of the Ceryneian Hind who made unnamed background appearances until she was named in 2014. She made her doll debut in the "student disembodied council" 5 pack. She has short pink hair, large horns, and gold skin.
Howleen Wolf (voiced by America Young in most appearances, Lara Jill Miller in some webisodes) is a werewolf and Clawd, Clawdia and Clawdeen's younger sister. She is fourteen years old. Howleen considers her sense of style as "werepunk," but Clawdeen characterizes Howleen's style as "she got dressed 'in the dark'". She shares a room with Clawdeen and is constantly borrowing Clawdeen's clothes without asking. Howleen displays puppy behavior such as chewing on Clawdeen's shoes and even wipes her nose on her sister's jackets. Howleen becomes friends with Abbey after Abbey comes to her defense when she is being bullied by Manny. In her original appearance, Howleen had orange hair with yellow streaks, but every doll since has had pink hair. Howleen's diary and bio state she likes to change her hair colour and style just like her sister Clawdeen. She was the first doll to utilize the "little sister" body sculpt which is shorter and younger looking than the regular body, same as Draculaura, whom is also short.
Isi Dawndancer is the daughter of a Deer Spirit. She has blue hair and brown eyes, but has deer ears and wears a headband with antlers. She comes from a lineage of Boo Hexican Deer Spirits.
Jane Boolittle (voiced by Stephanie Sheh) is an unspecified monster girl from an unspecified jungle. She is the adoptive daughter of the mad scientist Doctor Boolittle (based on Doctor Dolittle) who found her in the sole company of her pet sloth Needles during an expedition with Dr. Moreau. Jane isn't used to other teenage monsters due to having been homeschooled most of her life. She can talk to animals and is shown in the webisodes to have befriended the pets of the Monster High students.
Kjersti Trollson is the daughter of a troll. She has pink and blue hair, and wears pink bit-framed glasses, an aqua helmet with horns, a black and pink dress. She enjoys gaming and her handbag is shaped as a video game console controller.
