Susan Irvine

Miss Susan Irvine is the secondary antagonist turned heroine of the 1990 dark fantasy film adaptation of the 1983 children's book The Witches by Roald Dahl.

She is portrayed by ???.

History
Susan Irvine, commonly called Miss Irvine, is an evil witch and the assistant and right-hand woman of the Grand High Witch, the evilest woman in creation, who is masquerading as Eva Ernst.

Miss Irvine accompanies her employer to the hotel for the witch convention and is always at her side to implement her orders.

Miss Irvine is present during the meeting of the witches and helps the Grand High Witch remove her mask, while she removes her wig, revealing her horrific appearance.

Near the end, Miss Irvine is forbidden from attending to a witch dinner by Eva. The mistreatment angers Susan, who turns on her employer.

After the Grand High Witch is defeated, Miss Irvine decides to turn away from her wicked ways and become a light witch. She travels to Luke's house and reverses his state of being a rat, returning him to his normal human form.

Personality
Like her boss, Miss Irvine seems to despise children and wishes to cause them harm. While she is still the Grand High Witch's assistant, she contains a more wicked and sinister personality, urging on her boss to commit her evil deeds. However, after turning over to the side of good she displays a much happier and lighter personality, giggling as she casts her spells.

Trivia

 * She was not featured in the book and was created for the film specifically.
 * It is unclear if her name is an alias like Eva's or if it is indeed her real name.
 * Roald Dahl hated the film due to the changed ending.