Dev and Maya are both married to different people. Settled into a life of domestic ritual, and convinced that they are happy in their respective relationships, they still yearn for something deeper and more meaningful, which is precisely what they find in each other.
| Actor | Role |
|---|---|
 Shah Rukh KhanDev Saran | Dev Saran |
 Rani MukerjiMaya Talwar | Maya Talwar |
 Abhishek BachchanRishi Talwar | Rishi Talwar |
 Preity ZintaRiya Saran | Riya Saran |
 Amitabh BachchanSamarjit 'Sam' Talwar | Samarjit 'Sam' Talwar |
 Kirron KherKamaljeet Saran | Kamaljeet Saran |
 Ahsaas ChannaArjun Saran | Arjun Saran |
 Arjun RampalJai | Jai |
 John AbrahamGuest Appearance | Guest Appearance |
 KajolPiano dancer (uncredited--special appearance) | Piano dancer (uncredited--special appearance) |
 Karan JoharGuest Appearance (uncredited) | Guest Appearance (uncredited) |
 Kate BraithwaiteEnglish dancer | English dancer |
 Ayan MukerjiTrain Passenger | Train Passenger |
| TTarun MansukhaniRishi's colleague | Rishi's colleague |
| SSaira MohanCatherine Cooper | Catherine Cooper |
| AAdriana BremontReceptionist | Receptionist |
| Ahsaas ChannaArjun D. Saran | Arjun D. Saran |
 Greg D'AgostinoCoach George Push | Coach George Push |
 Manish DayalReporter | Reporter |
 Aykut HilmiGangster | Gangster |
| MMadalyn McKayAnnouncer | Announcer |
| GGiuseppe RaucciSoccer Player | Soccer Player |