Sridevi as Devki Sabarwal: Arya's step-mother and biology teacher Nawazuddin Siddiqui as Daya Shankar "DK" Kapoor: a detective Akshaye Khanna as Central Bureau of Investigation CBI Officer Matthew Francis Adnan Siddiqui as Anand Sabarwal: Arya's Father Sajal Ali as Arya Sabarwal: Devki's step-daughter Abhimanyu Singh as Jagan Pitobash as Baburam Vikas Verma as Charles Diwan Ivan Rodrigues as the School Principal Adarsh Gourav as Mohit, Arya's classmate