शकुंतला देवी

Vidya Balan

Shakuntala Devi

Sanya Malhotra

Anupama Banerji

Jisshu Sengupta

Paritosh Banerji

Amit Sadh

Ajay Abhaya Kumar

Luca Calvani

Javier

Sheeba Chaddha

Tarabai

Prakash Belawadi

Shakuntala's Father

Ipshita Chakraborty Singh

Shakuntala's Mother

Ahan Nirban

Srinivas

Chahat Tejwani

Young Anu

Nisha Aaliya

Bookshop Interviewer

Max Dowler

BBC Host

Phillip Roy

Mr. Stevens - Shakuntala's lawyer

Alex Bartram

Edward

Purnendu Bhattacharya

Ajay's Father

Neil Bhoopalam

Dheeraj

Ian Bailley

Mediator

Jon Wennington

Mathematician (uncredited)

Marianne March

Barbara Jensen