On screen
Cast
25 credited performers
Asa Butterfield
Nathan Ellis
Rafe Spall
Martin Humphreys
Sally Hawkins
Julie Ellis
Eddie Marsan
Richard
Jo Yang
Zhang Mei
Alex Lawther
Isaac Cooper
Alexa Davies
Rebecca Dunn
Martin McCann
Michael Ellis
Orion Lee
Deng Laoshi
Jake Davies
Luke Shelton
Paul J. Dove
John
Percelle Ascott
Ben Morgan
Artwork unavailable
Christina Low
IMO Contestant
Artwork unavailable
Edward Baker-Close
Nathan Ellis (9 yrs)
Artwork unavailable
Suraj Rattu
Pav Kamdar
Jamie Ballard
Headmaster
Clare Burt
Doctor
Artwork unavailable
Adam Foster
Paediatrician
Artwork unavailable
Lee Zhuo Zhao
Li Jing
Shannon Beer
Caz
Tasha Connor
Jessie
Artwork unavailable
Bo-Han Huang
Luke's Buddy
Artwork unavailable
Song-Hung Chang
Employee
Artwork unavailable
Lawrence Jeffries
Schoolboy
Artwork unavailable
Ciaran Wakefield
Schoolboy