Dev Patel as Saroo Brierley

Rooney Mara as Lucy

David Wenham as John Brierley

Nicole Kidman as Sue Brierley

Abhishek Bharate as Guddu

Divian Ladwa as Mantosh Brierley

Priyanka Bose as Kamla Munshi

Deepti Naval as Saroj Sood

Tannishtha Chatterjee as Noor

Nawazuddin Siddiqui as Rama

Sunny Pawar as Young Saroo

Keshav Jadhav as Young Mantosh

Benjamin Rigby as Waiter

Kaushik Sen as Police Official

Riddhi Sen as Cafe Man

Arka Das as Sami

Emilie Cocquerel as Annika

Pallavi Sharda as Prama

Sachin Joab as Bharat

Menik Gooneratne as Swarmina

Anna Samson as Cute Bar Maid

Eamon Farren as Luke

Tegan Crowley as Workmate #1

Belinda Misevski as Lucy's Friend

Lucy Moir as Lucy's Friend

Khushi Solanki as Young Shekila

Shankar Nisode as Shankar

Rita Roy as Amita

Uday Shankar Paul as Liluah Teacher

Surojit Das as Shondeep / Haunted Boy

Todd Sampson as Provost

Daniela Farinacci as Tutor

Vinod Chauhan as Merchant

Babli Pandey as Woman with Baby

Madhukar Narlwade as English-speaking Man

Rohini Kargaiya as Shekila