When Munna Bhai, a notorious gangster, meets Komal, he is immediately smitten. However, he must first confront her protective brother, Dr. Rastogi and her current boyfriend, Raja.
| Actor | Role |
|---|---|
 Ajay DevgnRaja | Raja |
 Sanjay DuttMunna Bhai | Munna Bhai |
 Amitabh BachchanDr. Malhotra | Dr. Malhotra |
 Aishwarya Rai BachchanKomal | Komal |
 Paresh RawalCommissioner | Commissioner |
 Satish KaushikPappu Pager | Pappu Pager |
 Annu KapoorMunnu Mobile | Munnu Mobile |
 Mukesh RishiPillai's brother | Pillai's brother |
 Ashish VidhyarthiPillai | Pillai |
 Shahbaz KhanNot listed | Not listed |
| AAsad AleemNot listed | Not listed |
 Avtar GillInspector Shinde | Inspector Shinde |
 Supriya KarnikDr. D.D's wife | Dr. D.D's wife |
 Ali AsgarBablu (Dr. D.D's son) | Bablu (Dr. D.D's son) |
 Himani ShivpuriPatient Ramgopal's wife | Patient Ramgopal's wife |
 Shashi KiranNot listed | Not listed |
 Rajpal YadavThief at the parking lot | Thief at the parking lot |
 Vivek VaswaniDoctor | Doctor |
 Viju KhotePandit | Pandit |
 Javed KhanNot listed | Not listed |
 Razak KhanMunna Bhai's man | Munna Bhai's man |
| AAmit UnadkatRohit Jambalaya | Rohit Jambalaya |
 Navin NischolDr. D.D | Dr. D.D |
 Rammohan SharmaJhammu | Jhammu |