Andrea O'Malley
  Andrea is easily lead and perfect as Chloe's sidekick. But she's a tough cookie and has been taught to stand up for herself. She provides Chloe with back-up, but more than ever this year Andrea feels increasingly uneasy with Chloe's malevolence and will even defy Chloe if she feels she's gone too far. Andrea's academic potential is now beginning to surface and she could do quite well at school, but is being held back by Chloe. However, their friendship is solid and Andrea shows genuine warmth towards her partner-in-crime.

Connections
  Sister: Dawn (left)
Best mate: Chloe

Background
  Year 7 Andrea is a willing accomplice to Chloe in her sweet scam and bullying of Alex. When Dawn finds out what she's done, she volunteers the Wannabees for Ms Lawrence's Community Cohesion project.

Year 8 Andrea suggests they sell the answers to Mr Leeshman's History test - the same one Dawn took in Year 8. But Mr Leeshman is away and they take a different test - leaving Andrea and Chloe out of pocket. The pair later come up with the lost property scam - and turn on Sammy when she spills the beans.

Year 9 Chloe is determined to hook Max despite Andrea's please for her to stop wasting her time. Andrea is also complicit in Chloe's "Bands For Baz" scam after the death of the sixth former.

Year 10 Andrea and Chloe lock themselves in the school shed to get out of cross country, but ended up being taken across town when a lorry collects the hut from the school! At the dog show, Chloe and Andrea's" charity collection" has to be returned when Jenny's dog finds their plunder. Andrea surprises Chloe with her talent for spelling as she unseats the reigning champion of Grange Hill's Spelling Grapple, and acts as Chloe's defence when Alex puts her before his bully court.
 

Lowdown
TYPE: Yes-girl
MATE RATING: Won't answer back
ROMANCE RATING: Why date boys when you can scam them?
REBEL RATING: When Chloe goes too far...
 

SERIES 31
Laxo Archer
Abel Benson
Theo Benson
Miss Bettany
Ed Booth
Jake Briggs
Clooney
Ducket
Miss Greene
Gyngell
Lucy Johnson
Tigger Johnson
Togger Johnson
Sammy Lee
Mr McDonnell
Kathy McIlroy
Chloe Moore
Andrea O'Malley
Mrs Rawlinson
Serena Sulli
Rachel Towers
Bryn Williams
Megan Williams
XS
Jenny Young
Tanya Young

Ali Duncan
Andy Turner
Anika Modi
Anna Duncan
Annette Firman
Annie Wainwright
Baz Wainwright
Benny Green
Briony Jones
Calley Donnington
Calvin Braithwaite
Carl Fenton
Claire Scott
Clare Chaplin
Colin Brown
Danny Hartston
Danny Kendall
Darren Clarke
Dawn O'Malley
Delia Lodge
Donnie Briscoe
Duane Orpington
Eleanor Smith
Emma Bolton
Fay Lucas
Freddie Mainwaring
Gemma Lyons
Georgina Hayes
Gonch Gardner
Gordon Jones
Gripper Stebson
Holly Parsons
Ian Hudson
Imelda Davis
Jackie Wright
Jacko Morgan
James Arnold
Jeremy Bishop
Jessica Arnold
Joanna Day
Joe Williams
Josh Irvine
Judi Jeffreys
Justine Dean
Karen Young
Katrina Simpson
Katy Fraser
Kelly Bradshaw
Keiran Osbourne
Kyle Brown
Leah Stewart
Lisa West
Maddie Gilks
Martin Miller
Maria Watts
Matthew Cartwright
Matthew Pearson
Matt Singleton
Max Humphries
Mauler McCaul
Mel Adams
Mike Bentley
Mooey Humphries
Natasha Stevens
Nathan Charles
Neil Timpson
Pamela Cartwright
Pogo Patterson
Robbie Wright
Roland Browning
Ronnie Birtles
Ross Duncan
Sam "Cracker" Bacon
Shona West
Spencer Hargreaves
Suzanne Ross
Taylor Mitchell
Tom Smith
Tracy Long
Trevor Cleaver
Trisha Yates
Tucker Jenkins
Vikki Meedes
Wally Scott
Wayne Sutcliffe
Zammo Maguire
Ziggy Greaves
Zoe Stringer

Miss Adams
Mr Bronson
Miss Carver
Mr Deverill
Mr Garfield
Mr Hankin
Mr Hargreaves
Mrs Holmes
Mr Hopwood
Mrs Knuckle
Mr Malachay
Mrs McClusky
Scruffy McGuffy
Mr MItchell
Mr Robson
Mr Thomson