Midori Hayashi

Mindy is Astro's classmate in the 1980 series. She, Theodore, and Kenneth are the first human kids to befriend Astro, and she immediately welcomes Astro into her friend group.

Appearance
Mindy is a 10-year-old human, with brown hair and brown eyes. She always has her hair in high-set pigtails. Usually Mindy dresses in the colour green, which is a reference to how her Japanese name "midori" means "green".

Personality
Mindy is outgoing and well-spoken, and often leads class projects. While she is usually a serious student, she enjoys joking around with Theodore and Kenneth. She is also very open-minded, and sees robots as equals.

Mindy believes very much in Astro. She is often confident that his powers will save the day, and is usually the first person to defend Astro if he gets in trouble.