Radar (みみよりくん, Mimiyori-kun) is a hamster who appeared in Hamtaro: Ham-Ham Heartbreak and Hamtaro: Rainbow Rescue. His ears and tail are somewhat long for a hamster and are most likely the reason for his name. He is a news reporter, and appears in Ham-Ham Heartbreak at the end with his partner Drizzle. In one of the Japanese episodes, he is a prince who marries Princess Championi.