M.I. High

Chris Stanton

Mr Flatley

Jonny Freeman

Frank London

Rachel Petladwala

Rose Gupta

Channelle Owen

Mr King

Ben Kerfoot

Oscar Cole

Charlene Osuagwu

Carrie Stewart

Eliza Cummings-Cove

Davina Berry

Jenny Huxley Golden

Avril Franklin

Sam Melvin

Scoop Doggy

Joe Cocklin

Donovan Butler

Julian Bleach

Grandmaster

Oyiza Momoh

Aneisha Jones

Sam Strike

Daniel Morgan

Oscar Jacques

Tom Tupper

Paul Bamford

Roly Donaldson

Danny John-Jules

Lenny Bicknall

Bel Powley

Daisy Millar

Moustafa Chousein-Oglou

Blane Whittaker

Anthony Genas

Homie Apathy

Scott Gibbins

Stewart Critchley

Betty Denville

Zara

Jane Cameron

Ms Templeman

Sam Ardley

Fifty Pence

Rebecca Palmer

Stella

Jonathan Rhodes

Chief Agent Stark

Princess Webb

Letitia

Natasha Watson

Zoe

Joshua Haynes

Byron Ditchwater

Tallulah Greive

Melissa Albright

Julia Brown

Keri

Megan McGill

Lady J

Sandy Bain

Preston

Brian McCardie

Mr McNab

Pollyanna McIntosh

Crime Minister

Leonie Boyd

Kaleigh

Adjoa Andoh

Head of M.I.9

Kerry Shale

Voice of the Grand Master

Brian Cox

Voice of the Mastermind

Finn den Hertog

Hamish

Rae Baker

Jade Dixon-Halliday