 | Farhan Akhtar als Karthik |
 | Deepika Padukone als Shonali Mukherjee |
 | Ram Kapoor als Raj Kamath |
 | Vivan Bhatena als Ashish |
 | Vipin Sharma als Karthik's Landlord |
 | Yatin Karyekar als Karthik's Boss at Cochin |
 | Suresh Tope als Office Friend |
 | Shefali Shah als Dr. Kapadia |
| Tarana Raja als Neelu Didi |
| Vinay Jain als Siddharth |
 | Kanchan Pagare als Peon at ACL Office |
 | Brijendra Kala als Telephone Exchange Clerk |
| Abhay Joshi als Phone Salesman Mumbai |
| Hansa Singh als Secretary at ACL Office |
| Vijay Lalwani | Director |
| Vijay Lalwani | Screenplay |
| Farhan Akhtar | Producer |
| Paran Bawa | First Assistant Director |
| Ritesh Sidhwani | Producer |
| Miriam Joseph | Executive Producer |
| Amit Chandrra | Associate Producer |
| Vijay Lalwani | Associate Producer |
| Stuti Ramachandra | Line Producer |
| Vijay Lalwani | Story |
| Vijay Lalwani | Dialogue |
| Sanu John Varghese | Director of Photography |
| Ehsaan Noorani | Original Music Composer |
| Shankar Mahadevan | Original Music Composer |
| Loy Mendonsa | Original Music Composer |
| Karsh Kale | Additional Soundtrack |
| Midival Punditz | Additional Soundtrack |
| Prashant Dcruz | Sound Effects Editor |
| Prashant Dcruz | Sound Editor |
| K K Muralidharan | Production Design |
| Rachna Rastogi | Production Design |
| Shama Shah | Set Decoration |
| Nandini Shrikent | Casting Director |
| Niharika Bhasin | Costume Designer |
| Aarti Bajaj | Editor |
| Swapnil Pathare | Makeup Artist |
| Manoj Chouhan | Post Production Supervisor |
| Alyssa Mendonsa | Playback Singer |
| Clinton Cerejo | Playback Singer |
| Shankar Mahadevan | Playback Singer |
| Loy Mendonsa | Playback Singer |
| KK | Playback Singer |
| Kailash Kher | Playback Singer |
| Sukanya Purayastha | Playback Singer |
| Suraj Jagan | Playback Singer |
| Caralisa Monteiro | Playback Singer |
| Malika Singh | Playback Singer |
| Javed Akhtar | Lyricist |
