Calificación
Reparto

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

Christina Low
IMO Contestant

Edward Baker-Close
Nathan Ellis (9 yrs)

Suraj Rattu
Pav Kamdar

Jamie Ballard
Headmaster