Kunchithapatham's unique name becomes the butt of joke and ridicule for others. He relates his failures to his name and wants to change it. He meets an astrologer who is popular in giving fancy names that could bring luck to people. His named his changed to Harish and soon after his luck changes.
| Actor | Role |
|---|---|
 SivakarthikeyanKunjithapatham/Harish | Kunjithapatham/Harish |
 Priya AnandGeetha | Geetha |
 Nandita SwethaValli | Valli |
 SathishPeter | Peter |
| SSuza KumarKunjithapatham's first love interest | Kunjithapatham's first love interest |
 JayaprakashCoach | Coach |
 Ravi PrakashRaja Singh | Raja Singh |
 Sharath LohitashwaNot listed | Not listed |
 ManobalaAstrologer Gunashekar Raja | Astrologer Gunashekar Raja |
 Madhan BobOffice Manager | Office Manager |
 SwaminathanPaavadaisamy | Paavadaisamy |
 Bava LakshmananNot listed | Not listed |
 AarthiNot listed | Not listed |
 Surekha VaniKunjithapatham's Mother | Kunjithapatham's Mother |
 Gemini RajeswariNot listed | Not listed |
 SivakumarNot listed | Not listed |
 RJ BalajiSelf | Self |
 DhanushSelf - Dancer | Self - Dancer |
 NayantharaSelf - Dancer | Self - Dancer |
 Anirudh RavichanderBar Waiter | Bar Waiter |
 V R DineshDinakaran | Dinakaran |
 M. S. Bhaskar(voice) | (voice) |