A father writes his will — his son "Jolly" is going to get it all. But who is Jolly? The comedy unfolds as different people pose as the "real" Jolly on a cruise celebrating the father's birthday — where a murder takes place.
| Actor | Role |
|---|---|
 Akshay KumarJulius / Jolly No. 3 | Julius / Jolly No. 3 |
 Abhishek BachchanJalbhushan / Jolly No. 2 | Jalbhushan / Jolly No. 2 |
 Riteish DeshmukhJalabuddin / Jolly No. 1 | Jalabuddin / Jolly No. 1 |
 Jacqueline FernandezSashikala | Sashikala |
 Sonam BajwaZara Akhtar | Zara Akhtar |
 Nargis FakhriKaanchi | Kaanchi |
 Nana PatekarDagdu Hulgund | Dagdu Hulgund |
 Sanjay DuttBhidu | Bhidu |
 Jackie ShroffBaba | Baba |
 Fardeen KhanCEO Dev | CEO Dev |
 Shreyas TalpadeCMO Shiraz | CMO Shiraz |
 Chitrangada SinghCFO Maya | CFO Maya |
 Dino MoreaCOO Bedi | COO Bedi |
 Chunky PandayAakhri Pasta | Aakhri Pasta |
 Johny LeverBatuk Patel | Batuk Patel |
 Nikitin DheerCaptain Sameer | Captain Sameer |
 Soundarya SharmaLucy | Lucy |
 Ranjeet BediRanjeet Dobriyal | Ranjeet Dobriyal |
| AAkashdeep SabirDr. Aman Joshi | Dr. Aman Joshi |
 Bobby DeolJalal Dobriyal / Jolly No. 4 (special appearance) | Jalal Dobriyal / Jolly No. 4 (special appearance) |
 Archana Puran SinghShakuntala Devi (picture only) | Shakuntala Devi (picture only) |
 Mithun ChakrabortyJaggu Baba (photo only) | Jaggu Baba (photo only) |