"She wouldn't know Monet's Water Lilies unless Revlon named a nail polish after it."
Madison is the Sinclair family tragedy. As an 09er, she shares their sense of entitlement and tries to fix the school election to favour the club. As something of a blonde bimbo, she unpleasantly lords it over her brighter, darker-haired younger sibling. That she was switched at birth with Mac makes the Mackenzies one of the luckiest families in Neptune.
All bios: 3.12 3.11 2.16 2.13 2.07 1.21 1.11 1.06
Amanda Noret plays Madison Sinclair.