Christianna also known as Chrissie is the twin sister of Sebastian Brown, it is revealed that she is very protective of her youngest sister Aggy. She is about seven years old. Christianna is portrayed by Holly Gibbs.
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She smiled at Nanny McPhee while she's walk away

Personality Edit

Chrissie is cute and adorable and loves the company of her siblings she is quite naughty at times. She can also be cheeky.