Asa Butterfield character Nathan Ellis
Rafe Spall character Martin Humphreys
Sally Hawkins character Julie Ellis
Eddie Marsan character Richard
Jo Yang character Zhang Mei
Alex Lawther character Isaac Cooper
Alexa Davies character Rebecca Dunn
Martin McCann character Michael Ellis
Orion Lee character Deng Laoshi
Jake Davies character Luke Shelton
Paul J. Dove character John
Percelle Ascott character Ben Morgan
Christina Low character IMO Contestant
Edward Baker-Close character Nathan Ellis (9 yrs)
Suraj Rattu character Pav Kamdar
