Middle-aged private detective Gopichand and his temporary sidekick Bela don a series of quirky disguises amid a high-stakes theft investigation.
| Actor | Role |
|---|---|
 Raj KapoorGopichand Jasoos | Gopichand Jasoos |
 Zeenat AmanBela / Lacho / Shano Rani | Bela / Lacho / Shano Rani |
 Prem ChopraPrem Chopra / Mr. Munshiram / No. 252 / Nawab Karim Ali Khan | Prem Chopra / Mr. Munshiram / No. 252 / Nawab Karim Ali Khan |
 Viju KhoteGoan Taxi Driver | Goan Taxi Driver |
 I.S. JoharRam Rokada / No. 256 | Ram Rokada / No. 256 |
 Sujit KumarMr. Kaliram | Mr. Kaliram |