Charlotte Emily was the daughter of Henry Emily, who was murdered by William Afton after she was locked out of an establishment. She later possesses The Puppet throughout the Five Nights at Freddy's series.
You can add as many animals as you like in as many breeds as you like. The only rule is do NOT be weird about "spirit animals;" see here for more info: https://www.wellandgood.com/spirit-animal-native-american/
