Mandy

Mandy is one of the main character of both in the book and television series and together with the rest of the members of SPLAT she tries to foil the Headmasters plans for world domination before it's to late.

Personality
Mandy is one of the more mature members of SPLAT and seems to be the motherly influence in the society. She is the best at soothing people like Lloyd and Ingrid when they get in a temper and is generally the most level headed of the gang although she is not above making the odd snide remark when Lloyd's plans backfire.

Skills
Mandy like the other members of Splat! aside from Dinah can not by hypnotised by the Headmaster because she, like the others, is immune to it. Being immune to Hypnotism she is banned from assembly as it is where the Headmaster hypnotises people and reads knowledge to them to learn. We see in the book that the Headmaster meets with students and hypnotises them on there first day, this didn't work for Splat! aside from Dinah:

"Has he ever tried it with you? Gazed into your eyes and told you you were tired? said Dinah "Yes, " Lloyd said slowly. "He did once. When I first came to the school. He took off his glasses and stared at me and said "Lloyd, you are feeling very tired. You are very very sleepy. " "And what happened?" asked Dinah. "Nothing much. I just said, "no sir, I'm fine thank you".

Character history
At the start of the series, Mandy is attending St Champions school along with Lloyd, Harvey, Ian and Ingrid and are all outcasts as they are immune to the Headmasters powers unlike Dinah. The first time we meet Ian is in the first book during Dinah's first day at the school.