Cast & crew
Happy (2006)
Directed by A. Karunakaran Written by A. Karunakaran, Radha Mohan
Cast
| Allu Arjun | Bunny Breckinridge |
| Genelia D'Souza | Madhumati |
| Manoj Bajpayee | Bhasker |
| Brahmanandam | Sarojini Naidu |
| Kishore | Ratna |
| Deepak Shirke | Suryanarayana |
| Pavala Shyamala | Seller |
| Rama Prabha | Grandmother |
| G. V. Sudhakar Naidu | K |
| Suman Shetty | Ilona's Friend |
| Tanikella Bharani | Venkata Rao |
| Seetha | Bubba's Mother |
| M. S. Narayana | Collector |
| Master Bharath | Neighbor |
| Kondavalasa Lakshmana Rao | |
| Jahnavi Ellore | |
| Venu Madhav | |
| L. B. Sriram |
Crew
| S.P.B. Charan | Playback Singer |
| Vasundhara Das | Playback Singer |
| KK | Playback Singer |
| Shankar Mahadevan | Playback Singer |
| Raju Sundaram | Choreographer |
| Anthony | Editor |
| R. D. Rajasekhar | Director of Photography |
| Yuvan Shankar Raja | Original Music Composer |
| Suresh Chinna | Art Direction |
| A. Karunakaran | Screenplay |
| Kona Venkat | Dialogue |
| S. N. Swamy | Dialogue |
| Radha Mohan | Story |
| Anantha Sriram | Lyricist |
| Clinton Cerejo | Playback Singer |
| Viswa | Lyricist |
| Chandrabose | Lyricist |
| Pothula Ravikiran | Lyricist |
| Kulasekhar | Lyricist |
| A. Karunakaran | Director |
| Allu Aravind | Producer |
| Sirivennela Seetharama Sastry | Lyricist |
| Suchitra | Playback Singer |
| Karthik (Singer) | Playback Singer |
| Jassie Gift | Playback Singer |
| Yuvan Shankar Raja | Playback Singer |
| K. G. Ranjith | Playback Singer |