Hamtaro

Hamtaro is an anime  based on the manga series of the same name and is licensed by VIZ in North America. Hamtaro briefly aired on Cartoon Network's Toonami block in 2002.

Plot
Hamtaro ("Hamutaro") is owned by a 10-year-old girl named Laura Haruna (Hiroko Haruna or "Roko-chan" in the Japanese version). Curious by nature, he ventures out each day to make friends and go on adventures with a clan of fellow hamster friends known as The Ham-Hams.