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

Riddhi Sen as Cafe Man

Rita Boy as Amita

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