Erin Hunter is the pen name of a quartet of writers and editors, namely: Kate Cary, Cerith Baldry, Tui T. Sutherland, and Victoria Holmes. Cary and Baldry are both writers from the United Kingdom. Sutherland, born in Venuezela, now lives in the United States. Holmes is a UK-born editor and creator of the best-selling Warrior series. All are inspired by their love of cats.