Momma Robotnik

Momma Robotnik is the mother of Dr. Robotnik who is even meaner, crueler and more ruthless than he is.

She is kept in an asylum called the Mobius Home for Really Bizarre Mothers, though she escapes from time to time. Her insanity is enough to scare even Robotnik himself.

Originally a one-shot gag character for the episode "Momma Robotnik's Birthday", she found her way into the regular recurring cast about halfway through the series coming back for "Momma Robotnik Returns", "Zoobotnik", "The Last Resort", and "Sonic is Running".