Leo

Punya Elizabeth Bose as Sathya's Friend George Mariyan as Napoleon Mysskin as Shanmugan Santhi Mayadevi as Parthiban's Advocate Trisha Krishnan as Sathya Madonna Sebastian as Elisa Das Dinesh as Das and Co. Member Maya S. Krishnan as Escort Kamal Haasan as Vikram (Voice) Mathew Thomas as Siddharth 'Siddhu' Leela Samson as Public Prosecutor Denzil Smith as Judge Arjun Sarja as Harold Das Mansoor Ali Khan as Hridhayaraj D'Souza Vaiyapuri as Occult Priest Sachin Mani as Shruthi's Husband Madhusudhan Rao as Shanmugan's brother-in-law Chinmayi Sripaada as Sathya (Voice) Gautham Vasudev Menon as Joshy Andrews Ramakrishnan as Gabbi Sanjay Dutt as Antony Das Priya Anand as Deepa Andrews Janany Kunaseelan as Shruthi Vijay as Parthiban / Leo Das Sandy as Shanmugam's Son Babu Antony as Antony's henchman Anurag Kashyap as Daniel (Uncredited)

Rathna Kumar Writer Vijay Playback Singer Deeraj Vaidy Writer Anirudh Ravichander Original Music Composer, Playback Singer Dinesh Choreographer David Cronenberg Original Film Writer Tamil Sakthivel Assistant Editor Gopi Prasannaa Publicist Asal Kolaar Lyricist, Playback Singer Lokesh Kanagaraj Director, Writer Eka Lakhani Costume Designer John Wagner Graphic Novel