3 Idiots

Aamir Khan

(Ranchoddas "Rancho" Chanchad)

R. Madhavan

(Farhan Qureshi)

Sharman Joshi

(Raju Rastogi)

Boman Irani

(Viru "Virus" Sahastrabudhhe)

Kareena Kapoor Khan

(Pia Sahastrabudhhe)

Omi Vaidya

(Chatur "Silencer" Ramalingam)

Rahul Kumar

(Millimeter)

Parikshat Sahni

(Mr. Qureshi)

Farida Dadi

(Mrs. Qureshi)

Javed Jaffrey

(Ranchoddas Shyamaldas Chanchad)

Ali Fazal

(Joy Lobo)

Mona Singh

(Mona Sahastrabuddhe)

Achyut Potdar

(Machine Class Professor)

Arun Bali

(Shamaldas Chanchad)

Supriya Shukla

(Matron in Hospital with Pia)

Jayant Kripalani

(Campus Interview Panel Head)