Half-snake leader of the Mythical Creatures Zoo chain — immortal, and impossible to keep in a cage.
An 11-year-old mutant half-fox, half-human who knows almost everything and runs faster than light — the planner to Amethyst's fighter.
A 12-year-old mutant half-cat, half-human with angel wings, six stinger tails, and a tail made of 15 talking snakes — who breaks mythical creatures out of zoos.
Her real name is Alaia ("the world of the gods"), but she is called Gaia.
Her real name is Aki Asha ("sun and fire"), and her nickname is Aya ("rising from the ashes").
Lola, but her school nickname is Butterfly Girl.
A superhero who is half-vampire and half-cat.
A member of The Animals secret agency, age 9 — the oldest member of the group. Role: best warrior of the group. Goes by Susie or Sue.
A member of The Animals secret agency, age 7. Goes by Clover or Clove. Noted as having the least silly name of the group.
A member of The Animals secret agency, age 8. Goes by Sea or C.