Aunt Mildred

Mildred is the aunt of Daphne Blake.

Personality
She was so disbelieving of her niece's exploits in solving mysteries with a talking dog, she had Daphne committed to a "rest home." To add insult to injury, she had the cheek to send her a vase of flowers with a note reading "Get well soon-Auntie."

Scooby-Doo (DC Comics)
Daphne had been sent to Catwell Rest Home and Spa, where Mystery Inc. found her tearing at the experience.