Raju faces many hurdles and disappointments in matters of the heart throughout his life. But as a clown in a circus, he tries to make his audience laugh at the cost of his own sorrows. Along the way, Raju loves and loses, but must always keep a smile on his face because, in the words of his circus manager, "The show must go on."
| Actor | Role |
|---|---|
 Raj KapoorRaju | Raju |
 Rishi KapoorYoung Raju | Young Raju |
 DharmendraMahender Kumar | Mahender Kumar |
 Manoj KumarDavid | David |
 Simi GarewalMary | Mary |
 Ksiena RabiankinaMarina | Marina |
 PadminiMeenu | Meenu |
 Dara SinghSher Singh | Sher Singh |
 Rajendra KumarNot listed | Not listed |
 Achala SachdevNot listed | Not listed |
 Om PrakashCircus Surgeon | Circus Surgeon |
 Rajendranath MalhotraCircus Surgeon | Circus Surgeon |