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R. Madhavan as Nambi Narayanan |
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Simran as Meena |
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Misha Ghoshal as Geeta Narayanan |
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Jagan as Scientist |
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Dinesh Prabhakar as L. D. Gopal |
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Ron Donachie as Col. Cleaver |
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Vincent Riotta as Luigi Crocco |
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Phyllis Logan as Mrs Cleaver |
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Gulshan Grover as A. P. J. Abdul Kalam |
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Ravi Raghavendra as Vikram Sarabhai |
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Shyam Renganathan as Shankar Narayanan |
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Karthik Kumar as P. M. Nayar |
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Mohan Raman as Udupi Ramachandra Rao |
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Sriram Parthasarathy as Barry Amaldev |
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Bijou Thaangjam as Studio Personnel |
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Rajeev Ravindranathan as Param |
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Sam Mohan as Unni |
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Bhawsheel Singh Sahni as Sartaj |
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Jack Dimich as Professor Eugene Scott |
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Karina Matas Piper as Michelle |
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Gaurav Venkatesh as Studio Personnel |
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Abhirami Venkatachalam as Boyfriend Girl |
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James Eliya as Unni's Father in law |
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Suriya as Interviewer (Tamil version) |
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शाहरुख़ ख़ान as Interviewer (Hindi version) |
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Muralidaran as Arunan |
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Emma Gojković as Elizabeth |
| Production | Sarita Madhavan | Producer |
| Production | Aadore Mukherjee Mehra | Casting Director |
| Sound | Justin Jose | Sound Re-Recording Mixer |
| Production | Gaurav Mishra | Executive Producer |
| Costume & Make-Up | Gautami Hazra | Costume Design |
| Production | Smriti Jain | Executive Producer |
| Costume & Make-Up | Vikram Gaikwad | Makeup & Hair |
| Costume & Make-Up | Rohan Jagtap | Makeup & Hair |
| Production | Vijay Moolan | Producer |
| Writing | Prakash Nambiar | Creative Producer |
| Editing | Ashirwad Hadkar | Digital Intermediate Colorist |
| Production | Varghese Moolan | Producer |
| Sound | Siddharth Dubey | Sound Designer |
| Sound | Divakar Subramaniam | Additional Soundtrack |
| Visual Effects | Anuj Deshpande | VFX Supervisor |
| Costume & Make-Up | Niharika Bhasin | Costume Design |
| Writing | R. Madhavan | Writer |
| Directing | R. Madhavan | Director |
| Sound | Sam C S | Original Music Composer |
| Camera | Sirsha Ray | Director of Photography |
| Directing | Prajesh Sen | Co-Director |
| Production | R. Madhavan | Producer |
| Editing | Bijith Bala | Editor |
| Editing | Vishnu Revikumar | Assistant Editor |
| Art | Prerna Kathuria | Production Design |
| Editing | Ashirwad Hadkar | Colorist |
