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Susan Dinwiddie is the mother of a family that was once involved in the music business.

Physical appearance

Susan is a middle-aged Caucasian female, with short, ruffled blonde hair. She has a slim figure. She wears a polo-necked light purple sweater with a violet blazer, and black skirt with matching black heels.

Personality

She is ruthlessly ambitious for Andy and Mandy's music career. However, she neglected her other child, Randy, only spending time with him to learn from his studies in animatronic mechanisms to control the Mystery Machine. Her overly extra attention to them made Randy jealous and resentful of his brother and sister.

History

Early life

Susan is revealed as the culprit.

When Andy and Mandy were little, she managed them as the Mystery Kids. They traveled around in the Mystery Machine (before the the gang owned it) driven by their keyboardist, Flash Flannigan. Flash once stormed off stage (possibly because of Susan's obsession of her kids and being treated as second class), never to be seen again and later apparently died (though it was possible he may have faked his death). The Mystery Kids eventually retired from music.

What's New, Scooby-Doo?

Season one

Andy and Mandy were now in their teens, and she wanted the Mystery Kids to have a big comeback. So she decided to operate the Mystery Machine by remote control to get attention for their concert, and made it look like a monster on the loose. She wanted people to believe it was the ghost of Flash back for revenge. Her plot failed, and was uncovered by the gang. Susan said that she never meant for the things to get so out of hand, but the gang wouldn't stop meddling. In the end, Andy and Mandy decided to call it quits, knowing that trying to be famous again isn't worth the stunt their mother came up with, much to her dismay. They apologized to Randy for making him feel left out. It can be assumed she was arrested off screen.

Appearances

Notes/trivia

  • Susan may be a parody of Mrs. Partridge from the ABC sitcom, The Partridge Family.
  • Andy and Mandy may have made things better with Randy, but his mother especially didn't, after the only quality time they spent together was when she was only using him to gain the knowledge she needed to cause mayhem and get publicity for his siblings.
  • Susan's actions technically makes her guilty of attempted murder by proxy as her programing did have the Mystery Machine try to run the gang over, particularly:
    • When Shaggy and Scooby were walking home from the movies
    • When she almost made the Mystery Machine crash into a concrete barrier
    • When the Mystery Machine almost ran into them in an alleyway

In other languages

Actor Language Notes
Stefania Romagnoli Italian
Jannike Kruse Norwegian
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