- Note: This character's name is derived from Japanese, as no official English name is known.
Ken (けんちゃん) is a hamster who appears in the Hamuchanzu de Gozaimachu! manga series.
Ken did not have any major roles in any Hamtaro media; outside of appearing on a few trading cards, and having small cameos in Gozaimachu! Vol.2 and Vol.3. There is also an XLC Co. figure of him.