Madam Mim is the main antagonist of The Sword in the Stone. She is Merlin's arch-nemesis.
She was voiced by the late Martha Wentworth.
- Madam Mim is sometimes confused to be the secondary, tertiary, and minor antagonist in the film. This is not true as she is the one who drives the plot, has bigger plans than anyone else, and is a direct enemy to Merlin.
- Despite being the main antagonist, she has very little screen time.