Regina Berry is the naive daughter of the late Berry Big Circus ringmaster Russell Berry. She works as an animal tamer at the circus alongside Regent the tiger and, until his death, Leon the lion. Since Regina was brought up at the circus, it was the only world she knew for most of her life. As such, she had a very fantastical view of the world and was extremely naive. She believed that, when people die, they become "stars in the sky".