Vijay as Parthiban / Leo Das

Sanjay Dutt as Antony Das

Arjun Sarja as Harold Das

Trisha Krishnan as Sathya

Gautham Vasudev Menon as Joshy Andrews

Baby Iyal as Mathi "Chintu"

Mathew Thomas as Siddharth 'Siddhu'

George Mariyan as Napoleon

Priya Anand as Deepa Andrews

Mysskin as Shanmugan

Sandy as Shanmugam's Son

Madonna Sebastian as Elisa Das

Mansoor Ali Khan as Hridhayaraj D'Souza

Babu Antony as Antony's henchman

Janany Kunaseelan as Shruthi

Ramakrishnan as Gabbi

Denzil Smith as Judge

Vaiyapuri as Occult Priest

Sachin Mani as Shruthi's Husband

Madhusudhan Rao as Shanmugan's brother-in-law

Santhi Mayadevi as Parthiban's Advocate

Leela Samson as Public Prosecutor

Dinesh as Das and Co. Member

Santhi Master as Shanmugam's Wife

Jawahar as Veterinary Doctor

Anurag Kashyap as Daniel (Uncredited)

Maya S. Krishnan as Escort

Kamal Haasan as Vikram (Voice)

Chinmayi Sripaada as Sathya (Voice)

Punya Elizabeth Bose as Sathya's Friend