The Mistress
Vital statistics
Role: The Warden of Ultraprison, lead singer of Lady Preserves & the Time Police
Gender: Female
Potential real name: Maxine Jenna Carpenter
Potential parents’ names: Lorraine and Kevin Carpenter
Status: Alive
Voiced by: Sally Donovan

The Mistress is one of the major antagonists of the series. She is the owner and proprietor of Ultraprison, an all female prison opposite of Superjail and she claims it to be "the best prison known to man".