Srinivasa Ramanujan

Dev Patel

G.H. Hardy

Jeremy Irons

Janaki

Devika Bhise

Howard

Anthony Calf

Stretcher Bearer

Alexander Cooper

Littlewood

Toby Jones

Major McMahon

Kevin R. McNally

Chandra Mahalanobis

Shazad Latif

Bertrand Russell

Jeremy Northam

Sir Francis Spring

Stephen Fry

Beglan

Padraic Delaney

Komalatammal

Arundathi Nag

Roman Green

Vice Master Henry Jackson

Richard Johnson

Andrew Hartley

Nicholas Agnew

Narasimha

Raghuvir Joshi

Ward Sister

Eleanor Inglis

Narayana Iyer

Dhritiman Chaterji

Mr. Iyengar/The Scribe

Roger Narayan

Hobson

Richard Cunningham

Alan Bentley

Patient

Arthur Wilde

Student/Cadet

Devlin Lloyd

Fellow of the Royal Society

Pat Carney

Waiter

Dominic Cazenove

Professor Cartwright

Malcolm Sinclair

Porter

David Shaw Parker

Dr. Muthu

San Shella

Postmistress

Shenagh Govan

Fellow

James Thomas Scott

Baker

Thomas Bewley

Student

Pip Barclay

Hospital Doctor

Alex Bartram

Nursie

Imogen Sage

Barnie

Alexander Forsyth

Grocer

Alan Booty

Wounded Soldier

Jon Lawes

Student Bully/Soldier

Jack Philips

Doctor

Enzo Cilenti

Hospital Nurse

Elaine Caulfield

J.J. Thompson

Christopher Ravenscroft

Director

Matt Brown

Director

Matthew Brown

Director

Dev Patel

Director

Jeremy Northam

Director

Stephen Fry