Grace Hudsun

Grace Hudsun is the main tritagonist of the series. Her first appearance was in the trailer. Normally, she's voiced by Ivy. In Portuguese, she's voiced by Amalia. As Big Grace, she is voiced by Salli. In MuMu's dream, she is voiced by Samantha when Siri was trapped in her lungs, controlling what she says.

As Big Grace, she is the main antagonist of the series. Her first appearance was in Super Danny.