 | Shah Rukh Khan als Aman Mathur |
 | Preity Zinta als Naina Catherine Kapur |
 | Saif Ali Khan als Rohit Patel |
 | Jaya Bachchan als Jennifer Kapur |
 | Sonali Bendre als Dr. Priya |
 | Reema Lagoo als Aman's Mother |
 | Satish Shah als Kursann bhai Patel |
 | Rajpal Yadav als Guru |
 | Sushma Seth als Lajjo Kapur |
 | Delnaaz Irani als Jasprit Kapoor |
 | Lillete Dubey als Jaswinder Kapoor |
 | Simone Singh als Camilla |
 | Shoma Anand als Lajjo Kapur's Sister |
 | Ketki Dave als Rohit's Mother |
 | Dara Singh als Pritam Chaddha |
 | Sulabha Arya als Kanta Bhen |
 | Anaita Shroff Adajania als Geeta Parekh |
 | Athit Naik als Shiv Kapur |
| Jhanak Shukla als Gia Kapur |
| Kamini Khanna als Lajjo Kapur's Sister |
 | Farah Khan als Customer in Jenny's Restaurant |
| Sonali Bendre als Priya (Special Appearance) |
 | Sanjay Kapoor als Abhay (Special Appearance) |
 | Kajol als Special Appearance in "Maahi Ve" Song |
 | Rani Mukerji als Special Appearance in "Maahi Ve" Song (uncredited) |
 | Uday Chopra als Special Appearance (uncredited) |
| Nikkhil Advani | Director |
| Karan Johar | Screenplay |
| Karan Johar | Producer |
| Yash Johar | Producer |
| Anil Mehta | Director of Photography |
| Sanjay Sankla | Editor |
| Sharmishta Roy | Production Design |
| Karan Johar | Story |
| Ana Cuadra | First Assistant Director |
| David Coombs | First Assistant Director |
| Tarun Mansukhani | First Assistant Director |
| Arjun Kapoor | Assistant Director |
| Kapil Chopra | Assistant Director |
| Punit Malhotra | Assistant Director |
| Shiraz Siddique | Assistant Director |
| Anadil Hossain | Line Producer |
| Ganesh Nankoosingh | Line Producer |
| Hiroo Johar | Associate Producer |
| Alex Schimel | Production Executive |
| Manoj Mittra | Production Executive |
| Driss Benyaklef | Production Manager |
| Gopal Babel | Production Manager |
| Prashant Kunder | Production Manager |
| Imtiaz Ansari | Production Controller |
| Rashid Abbasi | Production Controller |
| Niranjan Iyengar | Dialogue |
| Ehsaan Noorani | Original Music Composer |
| Loy Mendonsa | Original Music Composer |
| Shankar Mahadevan | Original Music Composer |
| Anuj Mathur | Sound Designer |
| Ajay Kumar P. B. | Location Sound Recordist |
| Kuldip Sood | Location Sound Recordist |
| Ali Merchant | Sound Editor |
| Kunal Uday Mehta | Sound Editor |
| Parikshit Lalwani | Sound Editor |
| Shankar Singh Raghuvanshi | Sound Editor |
| Vikram Biswas | Foley Artist |
| Anuj Mathur | Sound Assistant |
| Prashant Nayar | Sound Re-Recording Mixer |
| Mohammed Kasam Sayyad | Assistant Art Director |
| Rita Powers | Casting Director |
| Sean Powers | Casting Director |
| Farah Khan | Choreographer |
| Manish Malhotra | Costume Design |
| Fabio Martinez | Location Manager |
| Joseph White | Location Manager |
| Malaika Johnson | Location Manager |
| Mickey Contractor | Makeup Artist |
| Pankaj Khandpur | Visual Effects |
| Mamta Anand | Assistant Director |
