Aamir Khan as Ranchoddas "Rancho" Chanchad

R. Madhavan as Farhan Qureshi

Sharman Joshi as Raju Rastogi

Kareena Kapoor Khan as Pia Sahastrabudhhe

Boman Irani as Viru "Virus" Sahastrabudhhe

Omi Vaidya as Chatur "Silencer" Ramalingam

Mona Singh as Mona Sahastrabuddhe

Rahul Kumar as Millimeter

Parikshat Sahni as Mr. Qureshi

Farida Dadi as Mrs. Qureshi

Amardeep Jha as Mrs. Rastogi

Mukund Bhatt as Mr. Rastogi

Javed Jaffrey as Ranchoddas Shyamaldas Chanchad

Ali Fazal as Joy Lobo

Olivier Lafont as Suhas Tandon

Arun Bali as Shamaldas Chanchad

Achyut Potdar as Machine Class Professor

Akhil Mishra as Librarian Dubey

Dushyant Wagh as Older Millimeter

Supriya Shukla as Matron in Hospital with Pia

Chaitali Bose as Kamini "Kammo" Rastogi

Jayant Kripalani as Campus Interview Panel Head

Madhav Vaze as Joy Lobo's Father

Atul Tiwari as Minister in Auditorium

Rajeev Ravindranathan as Lead Ragging Senior

Shoaib Ahmed as Chhote