Captain Hamstern (ハムクック, Hamukukku) is a pirate and captain of Team Seahams. He appears in the 3rd movie Hamtaro: Ham Ham Grand Prix - The Miracle of Aurora Valley, Hamtaro Ham-Ham Games GBA game and the Ham-Ham Games OVA (mentioned).
His Japanese name, Hamcook, is probably an allusion to Captain Hook from Peter Pan.
His English name is likely a combination of Hamster and Stern, refering to his serious personality.
