Grace

Adoptive mother to the ragtag Academy crew, Grace has all the warm, comforting qualities of a parent and caregiver — except when there's a glitch in her hardware. Yes, Grace is a robot who Sir Reginald Hargreeves created after Viktor kept killing the nannies he hired. She's named and modeled after an actual human woman who Reginald dated in 1963 before she broke up with him over his apparent plan to kill JFK. Again, fair!