Caster (Tamamo-no-Ma)

Caster is the Caster-class Servant available to be chosen by Hakuno Kishinami, along with Saber, Archer, and Gilgamesh, in the Moon Cell Holy Grail War in Fate/Extra and Fate/Extra CCC.

Caster's identity is Tamamo-no-Mae, a woman of astonishing beauty that served the retired Emperor Toba the end of the Heian era (794-1185). Known as Misukume as a child, she was said to be the human form of a white-faced, gold-furred nine-tailed fox. She started to serve the court at the age of eighteen, and later became a lady-in-waiting of Toba, under the name Tamamo-no-Mae. She became the favorite of Emperor Toba due to her beautiful face and great knowledge. The exact accounts vary, but her identity as a fox was later exposed by an Onmyouji investigating the cause Toba's illness at the time.