Pepper is Kana's cousin, Dylan's, hamster. She lives on a farm, so she naturally likes farm related things like animals and plants. When she visited the Ham-Hams in the city, she called them "city slickers" and thought they were crazy for not doing things that she did there (such as running onto the road, and riding a donkey inside a building). Despite her boisterous nature, she cares about the Ham-Hams - Oxnard especially. She's also athletic, talented with sports like snowboarding. She is extremely skilled at controlling animals of all kinds. She is smart and has a quick temper.
Oxnard and Pepper are official lovers. Oxnard first admitted his feelings in Oxnard's Big Crush. Oxnard loves her deeply, and she returns his feelings. In a later episode, Oxnard stays at Dylan's farm with her. In Happy Ham-Ham Wedding!, the finale of the Hamtaro series, Oxnard and Pepper return to the Ham-Hams to announce they are getting married, and invite every Ham-Ham they have met to the wedding (excluding ones only seen in the movies and OVAs).
- Oxnard's Big Crush (#37)
- Welcome Pepper! (#42)
- Pepper's Visit! (#53)
- The Baby Goat (#70)
- Let's Dance, Ham-Hams! (#110)
- Oxnard Shows True Love (#119)
- Pepper, Empress of Spring (#138)
- Run, Pepper! (#179)
- Nice To See You, Pepper! (#242)
- Holiday with Broski! (#266)
- Oxnard and Pepper (#285)
- Happy Ham-Ham Wedding! (#296)
- Main article: Pepper/Gallery