 | Aamir Khan als Sanjay Singhania |
 | Asin Thottumkal als Kalpana Shetty |
 | Jiah Khan als Sunita |
 | Pradeep Ram Singh Rawat als Ghajini Dharmatma |
 | Riyaz Khan als Inspector Arjun |
 | Khalid Siddiqui als Air Voice Manager |
 | Tinnu Anand als Satveer Kohl |
 | Sai Tamhankar als Sunita's Friend |
 | Supreet als Ghajini's henchman |
 | Sunil Grover als Sampat |
 | Rajendran als Ghajini's henchman |
 | Vibha Chibber als Havaldar Vaijayanti |
 | Firdausi Jussawala als Dr. Peston Wadia |
| Sonal Sehgal als Ad model |
| Anjum Rajabali als Dr. Debkumar Mitra |
| Anthony | Editor |
| Tagore Madhu | Producer |
| A.R. Murugadoss | Director |
| Nitin Wable | Art Direction |
| A.R. Murugadoss | Story |
| Deval Samanta | Gaffer |
| Prakash Shetty | Gaffer |
| Allu Sirish | Co-Producer |
| Harish Amin | Line Producer |
| Deepak Gawade | Production Manager |
| Geeta Kapoor | Choreographer |
| Arjun Bhasin | Costume Design |
| Paul Van Der Ploeg | Location Manager |
| Piyush Mishra | Dialogue |
| A.R. Murugadoss | Screenplay |
| Antara Lahiri | Assistant Editor |
| T. Sunil Babu | Production Design |
| A.R. Rahman | Original Music Composer |
| Nishant Radhakrishnan | First Assistant Editor |
| Ravi K. Chandran | Director of Photography |
| Samir Chanda | Art Direction |
| Ahmed Khan | Choreographer |
| Gwen Swart | Production Coordinator |
| Madhu Mantena Varma | Producer |
| Peter Hein | Stunt Coordinator |
| Stun Siva | Stunt Coordinator |
| T. S. Suresh | Editor |
| Christopher Nolan | Original Story |
| Jonathan Nolan | Original Story |
