Oblina is a black and white striped monster with big red lips, green eyes and black slit-shaped pupils shaped like an upside-down candy cane who comes from a wealthy monster family and is considered by The Gromble to be his best student. She is the brains of the group. Her methods of scaring humans is reaching within herself and pulling out her internal organs, and she has considerable talent for shapeshifting into various terrifying forms. She also has a talent for inducing nightmares in humans, by sticking her finger in their ear and tickling their brains while they sleep.
When voicing Oblina, Christine Cavanaugh attempted to make the voice sound like a British version of the actress Agnes Moorehead.
