阿沙·巴特菲尔德

Asa Butterfield

饰：内森 Nathan

焦阳

Yang Jiao

饰：张梅 Zhang Mei

莎莉·霍金斯

Sally Hawkins

饰：朱莉 Julie

埃迪·马森

Eddie Marsan

饰：理查德 Richard

拉菲·斯波

Rafe Spall

饰：马丁 Martin Humphreys

马丁·麦凯恩

Martin McCann

饰：Michael Ellis

奥赖恩·李

Orion Lee

饰：Deng Laoshi

保罗J·多夫

Paul J. Dove

饰：John (uncredited)

Patricia Winker

饰：Invigilator (uncredited)

埃里克斯·劳瑟

Alex Lawther

饰：Isaac Cooper

李·博尔顿

Lee Bolton

饰：Multiple sclerosis patient

Colin Coombs

饰：MS Sufferer in Meeting (uncredited)

克莱尔·伯特

Clare Burt

饰：Doctor

Christina Low

Christina Low

饰：IMO Contestant (uncredited)

Mick Slaney

Mick Slaney

饰：Parent (uncredited)

香侬·碧尔

Shannon Beer

饰：Caz

佩塞尔·阿斯科特

Percelle Ascott

饰：Ben

塔沙·康纳

Tasha Connor

饰：Jessie

Adam Foster

Adam Foster

饰：Paediatrician

Jason Thomas Brown

Jason Thomas Brown

饰：Indian IMO Contestant (uncredited)

亚历克萨·戴维斯

Alexa Davies

饰：Rebecca

Lawrence Jeffries

Lawrence Jeffries

饰：Schoolboy 1

Jamie Ballard

Jamie Ballard

饰：Headmaster

Lee Zhuo Zhao

Lee Zhuo Zhao

饰：Li Jing

Lewis Adams

Lewis Adams

饰：Smoking School Pupil (uncredited)

Edward Baker-Close

Edward Baker-Close

饰：Young Nathan

杰克 ·戴维斯

Jake Davies

饰：Luke Shelton

Leo Chell

Leo Chell

饰：Family member

Joseph Myers

Joseph Myers

饰：UK Team Assistant (uncredited)

Suraj Rattu

Suraj Rattu

饰：Pav

Mary Garside

Mary Garside

饰：Extra

James Frost

James Frost

饰：Multiple Sclerosis Sufferer (as Jim Frost)

Song-Hung Chang

Song-Hung Chang

饰：Restaurant manager

Jessica Arden

Jessica Arden

饰：Alla (Russian IMO Team)

Bo-Han Huang

Bo-Han Huang

饰：Luke's Buddy

Ciaran Wakefield

Ciaran Wakefield

饰：Schoolboy 2

Karl Ng

饰：Mei Ping Wu