Mrs. Baker is the leader of an international counterfeiting ring and one of the main antagonists in The Dynamic Scooby-Doo Affair.
Using connections in the crime world, she manages to smuggle illegal goods into the United States including counterfeit money. Mrs. Baker had the Joker and Penguin distribute the counterfeit money across Gotham. Batman and Robin along with the Mystery Gang investigated one of her crates and were close to figure out Baker's operation and identity. Mrs. Baker dressed herself as the Hooded Man to kill both the Dynamic Duo and Mystery Gang to make sure they find out about her counterfeiting ring. Both groups apprehend Baker, Joker and the Penguin who were then taken away by the FBI.