He has an anti-human attitude, as it may have stemmed from a fairy tale that animals staged a coup on the Isle of Naboombu, killing the original leader, the human wizard Asteroth. Leonidas wears the Star of Asteroth, a talisman that is needed to bring ghosts to life. After suffering much pummelling and stampeding at a soccer game, Emile Brown succeeds at grabbing the Star of Asteroth from Leonidas. This causes an enraged Leonidas to pursue Brown and the children, but he is foiled when he is turned into a rabbit, albeit one with a lion's tale. He is last seen scurrying away. As rabbit spells are temporary, King Leonidas presumably returned to his lion form.
