Saif Ali Khan as Shekhar N. Roy

Vidya Balan as Lalita

Sanjay Dutt as Girish Sharma

Sabyasachi Chakraborty as Navinchandra Roy

Raima Sen as Koyal

Dia Mirza as Gayetri Tatya

Achyut Potdar as Gurcharan

Supriya Shukla as Sunita

Amitabh Bachchan as Narrator

Rekha as Moulin Rouge Singer

Tina Datta as Teenage Lalita

George Baker as William Eckhart

Haradhan Bandyopadhyay as Chatterjee

Rajesh Sharma as

Kharaj Mukherjee as Singer in Recording Studio

Suman Bannerjee as

Tapas Chakraborty as Dr. Mitra