Opal White

Opal White (née Azure) is a whitecoat working for the school. Her specializations are unknown.

She is the widowed wife of John White, and mother of Kathrine White. She is a cyborg after a fire she set, which killed her husband and mutated Kathrine.

Trivia

 * An opal is a kind of gemstone, appearing in many different colors.
 * Both of her surnames are/were colors.
 * She suffered from anxiety in her youth.