- Shah Rukh Khan
- Surinder 'Suri' Sahni / Raj Kapoor
- Anushka Sharma
- Taani Sahni
- Vinay Pathak
- Balwinder 'Bobby' Khosla
- M.K. Raina
- Taani's father
- Manmeet Singh Sawhney
- Raju mechanic
- Kajol
- Special appearances in the song 'Phir Milenge Chalte Chalte'
- Rani Mukerji
- Special appearances in the song 'Phir Milenge Chalte Chalte'
- Preity G Zinta
- Special appearances in the song 'Phir Milenge Chalte Chalte'
- Bipasha Basu
- Special appearances in the song 'Phir Milenge Chalte Chalte'
- Lara Dutta
- Special appearances in the song 'Phir Milenge Chalte Chalte'
- Bobby Bedi
- Tiny Singh
- Vivan Bhatena
- (as Vivan Bhathena)
- Puneet Cheema
- Dance Instructor
- Alene D'Souza
- Dance Instructor
- Aneesha Dalal
- Dance Instructor
- Areesz Ganddi
- M.C. at Dance Competition Finale
- Rajesh Jais
- Khanna
- Vineet Kapoor
- Chedda
- Amit Singh Kharbanda
- Taani's Father Friend
- Isha Koppikar
- Dance Master
- Shonali Nagrani
- ([Cameo])
- Rushad Rana
- (as Rana Rushod)
- Mark Sagato
- Sumo Wrestler
- Nilofar Salehi
- Dolly
- Muneesh Sappel
- Doctor
- Rohit Siobti
- Surinder's friend
- Karan Tacker
- Small scene in the background
- Anuj Tikku
- D.K.
