Chuluun is a lean snow leopard with blue eyes, light lavender fur, darker spots, and lighter underside. Her head features a diamond marking with two smaller markings on either side. Under her eyes are two streaks.
Her shoulders show various markings, some diamond shaped with smaller markings inside. Her tail is tipped with grey-lavender fur with white just underneath.
Chuluun has been described as a cunning snow leopard. Using her natural abilities of a snow leopard, she can make other animals believe she is truly a ghost, and she sees this as self-amusement or as a defense mechanism.
After her defeat by Bunga, she grows resentful of the Lion Guard and joins Makucha in his quest for vengeance.
By her own admission, she doesn't respect the Circle of Life and does whatever she wants, including scaring and harassing other animals for her own amusement.
Chuluun scared the red pandas out of their home, so the Lion Guard came to stop her. After her defeat at the hands of Bunga she was approached by Makucha, who asked her to join him, which she accepted happily.