 | Shah Rukh Khan als Rahul Raichand |
 | Amitabh Bachchan als Yashvardhan “Yash” Raichand |
 | Hrithik Roshan als Rohan Raichand |
 | Kajol als Anjali Sharma Raichand |
 | Jaya Bachchan als Nandini Chandran Raichand |
 | Kareena Kapoor Khan als Pooja “Poo” Sharma Raichand |
 | Rani Mukerji als Naina Kapoor |
 | Farida Jalal als Sayeeda “Daijaan / DJ” Naaz |
 | Jugal Hansraj als Mohit Sachdev |
 | Alok Nath als Omendra "Om" Sharma |
 | Kavesh Majmudar als Young Rohan |
 | Parzaan Dastur als Osman Siddiqui |
 | Simone Singh als Rukhsaar Naaz Siddiqui |
 | Johny Lever als Haldiram Rawat |
| Jibraan Khan als Krishi Raichand |
 | Achala Sachdev als Lajwanti “Daadi” Raichand |
| Aryan Khan als Young Rahul |
 | Himani Shivpuri als Saraswati Rawat |
 | Sushma Seth als Rajinder Kaur “Naani” Chandran |
 | Shashikala als Sahira Siddiqui |
 | Tamzin Griffin als Krishi’s teacher |
| Ramona Sunavala als Sonya |
| Jeroo Writer als Tanya |
 | Vikas Sethi als Robbie |
| Malvika Raaj als Young Pooja |
| Holly Holdsworth als Mrs Spritely |
 | Jessey Lever als Balram Rawat |
| Amar Adatia als Shopkeeper |
| Amith Rahman als Rajiv |
 | Ali Haji als Special Appearance |
 | Bharat Mistri als Anwar |
| Samir Shah als Wicketkeeper |
| Amar Talwar als Ashish Kapoor |
| Yash Johar | Producer |
| Sanjay Sankla | Editor |
| Babloo Chakravorty | Original Music Composer |
| Kiran Deohans | Director of Photography |
| Sandesh Shandilya | Original Music Composer |
| Karan Johar | Director |
| Sheena Parikh | Screenplay |
| Romany Helmy | Production Manager |
| Anup Dev | Location Sound Recordist |
| Rajendra Gupta | Sound Effects Editor |
| Sajjan Choudhary | Sound Effects Editor |
| Punit Malhotra | Assistant Director |
| Manoj Sankla | Assistant Editor |
| Ajay Kumar P. B. | Sound Assistant |
| Shiraz Siddique | Assistant Director |
| Tarun Mansukhani | Assistant Director |
| Richard Beetham | Music Supervision Assistant |
| Jayesh Kosambia | Boom Operator |
| Sharmishta Roy | Art Direction |
| Farah Khan | Choreographer |
| Rafiq Shaikh | ADR & Dubbing |
| Soham Shah | Assistant Director |
| Hiroo Johar | Associate Producer |
| Sharad Rane | Production Manager |
| Karan Johar | Story |
| Mohammed Ilyas | Music Supervision Assistant |
| Andy Pavord | Production Supervisor |
| Jitendra Matharoo | Negative Cutter |
| Nikkhil Advani | Assistant Director |
| Ali Merchant | ADR & Dubbing |
| Kunal Uday Mehta | Sound Editor |
| Kali Sharma | Production Manager |
| Baylon Fonseca | ADR & Dubbing |
| Vikram Biswas | Foley Artist |
| Ashok Shukla | Music Supervision Assistant |
| Karnail Singh | Sound Effects Editor |
| Kapil Chopra | Assistant Director |
| Nandini Shrikent | Assistant Director |
| Anuj Mathur | Sound Assistant |
| Umar Khan | Sound Assistant |
| Sudesh Bhosle | Playback Singer |
| Usha Uthup | Playback Singer |
