Chef Ham (コックさん, Kokku-san/Cook-san) A chef hamster with a colorful Italian accent and 10 children.
Chef-ham is an awesome chef that visited the ham-hams one day. They were so happy when he came (especially Oxnard) so they could have a huge feast! Chef-ham has traveled the globe cooking for hamsters. When he came back from his travels, he was supposed to make a feast for his kids, but he was afraid to cook for them (fearing they wouldn't like it), so the Ham-Hams decided to have the party at the clubhouse.
His homeland is Italy. He loves to dance and sing while he cooks. And, Hamtaro reffered to him as a 'grown up', so he is most likely older than the ham-hams; or, at least, Hamtaro.