Cast

Shah Rukh Khan
... Dev Saran
Rani Mukerji
... Maya Talwar
Amitabh Bachchan
... Samarjit 'Sam' Talwar
Preity Zinta
... Riya Saran
Abhishek Bachchan
... Rishi Talwar
Kiron Kher
... Kamaljit 'Kamal' Saran (as Kirron Kher)
Arjun Rampal
... Jay

Crew

Karan Johar
... story
Shibani Bathija
... screenplay
Karan Johar
... screenplay
Niranjan Iyengar
... dialogue
Anadil Hossain
... executive producer
Hiroo Johar
... producer
Manoj Mittra
... executive producer
Shankar Mahadevan(as Shankar-Ehsaan-Loy)
... Music
Loy Mendonsa(as Shankar-Ehsaan-Loy)
... Music
Ehsaan Noorani(as Shankar-Ehsaan-Loy)
... Music
Anil Mehta
... Cinematography
Sanjay Sankla
... Film Editor
Sharmishta Roy
... Art Director
Sandra Scurria
... Art Director
Manish Malhotra
... Costume Designer
Driss Benyaklef
... production manager
Prashant Kunder
... production manager
Royston D'Lima
... boom operator
Royston D'Lima
... sound recordist: second unit
Abhijit Deo
... live foley mixer
Stephen Gomes
... sound designer
Anuj Mathur
... sound re-recording mixer
Haroon Sheikh
... boom operator
Jeff Ward
... stunt coordinator
Shafqat Amanat Ali
... playback singer
Vasundhara Das
... playback singer
Mahalakshmi Iyer
... playback singer (as Mahalaxmi Iyer)
Shankar Mahadevan
... playback singer
Loy Mendonsa
... playback singer
Caralisa Monteiro
... playback singer (as Caralisa)
Srinivas Murthy
... conductor
Sonu Nigam
... playback singer
Shweta Pandit
... playback singer
Shaan
... playback singer
Alka Yagnik
... playback singer