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Karthika Nair as Renuka Narayanan "Renu" Kota Srinivasa Rao as Alavandhan Kaajal Pasupathi as Rudhra Jiiva as Ashwin Kumar Jayaraman Imman Annachi as Aalavandhan's Sidekick Tamannaah Bhatia as Cameo Appearance in "Aga Aga" Song Sanjana Singh as Cameo Appearance in "Aga Aga" Song Harris Jayaraj as Cameo Appearance in "Aga Aga" Song Peter Hein as Cameo Appearance in "Aga Aga" Song Rima Kallingal as Cameo Appearance in "Aga Aga" Song Pia Bajpiee as Saraswathi "Saro" Achyuth Kumar as S. Krishnakumar "Krish" Pattimandram Raja as Jayaraman Sona Heiden as Sumitha Kothari Vanitha Krishnachandran as Ashwin's Mother Ajmal Ameer as Vasanthan Perumal Prakash Raj as Chief Minister Yogeswaran Bose Venkat as Naxal leader Jagan as Chandru Anthony as TV Editor Madhan Karky as Cameo Appearance in "Aga Aga" Song

Anthony Editor Viveka Lyricist Harris Jayaraj Original Music Composer D.R.K. Kiran Art Direction Peter Hein Stunt Coordinator Kabilan Lyricist K. V. Anand Director, Story, Screenplay