Mimi Iwata (岩田モモ, Iwata Momo, Momo Iwata) is Panda's youngest owner and Kana's second cousin twice removed. A kindergarten-grade student and the only human character who can actually talk to the Ham-Hams. She is a patient and understanding young girl. Her parents are carpenters as Panda mentions in Calling All Ham-Hams!
- The implication behind her being able to talk to the Ham-Hams may be that she is too young to understand that hamsters shouldn't be able to talk to humans. However, the truth behind the hamsters' talking abilities are inconsistent across episodes.