Chako (チャコ Chako) (also known as Chaco) is a Mimiga who lives in Grasstown. She wears ribbons, lipstick, and possibly hair dye, considering that most of her fur is a bright lilac color instead of white fur like Mimiga usually have.
When Quote looks at Chako's fireplace, she'll walk over to her bed and explain that Quote will need to use Jellyfish Juice to douse the fire if he wants to go through it. She says that he can get some juice by hunting very big jellyfish. If Quote sleeps in Chako's bed while she's next to it, he'll wake up with Chako's Rouge.
Chako is later captured by the Doctor, along with the other Mimigas. After the Doctor is defeated, she flees the island in the helicopter, along with Santa. The two of them are seen again in the Sakamotos' laboratory.
- After the battle with The Doctor and the Muscle Doctor, if you speak to Chako several times, she will mention how Quote is heroic like Arthur, which causes Hearts to appear above the other Mimigas' heads. It is the only way to replenish health before the Undead Core battle.