Vikram

as Aditha Karikalan

Aishwarya Rai Bachchan

as Nandini / Mandakini Devi

Ravi Mohan

as Arunmozhi Varman

Karthi

as Vanthiyathevan

Trisha Krishnan

as Kundavai

Prakash Raj

as Sundara Chozhar

R. Sarathkumar

as Periya Pazhuvettarayar

R. Parthiban

as Chinna Pazhuvettarayar

Jayaram

as Alwarkkadiyan Nambi

Vikram Prabhu

as Parthibendran Pallavan

Rahman

as Madhurantakan

Aishwarya Lekshmi

as Poonguzhali

Sobhita Dhulipala

as Vanathi

Prabhu

as Periya Velaar

Lal

as Malayaman

Kishore

as Ravidasan

Jayachitra

as Sembiyan Maadevi

Ashwin Kakumanu

as Sendhan Amudhan

Babu Antony

as Khottiga Amogavarshan

Riyaz Khan

as Soman Sambavan

Yog Jappie

as Karuthiruman

Mohan Raman

as Anirudha Brahmarayar

Vidhya Subramanian

as Vaanavan Maadevi

Vinodhini Vaidyanathan

as Vasuki

Raaghavan Murugan

as Amarbujanga Pandiyan

Santhosh

as Young Aditha Karikalan

Sara Arjun

as Young Nandini

Nila Kavitha Bharathy

as Young Kundavai

Samartha Satyajit

as Young Arunmozhi Varman

Nassar

as Veerapandiyan

Nimmy Raphael

as Rakkamma

Vinay Kumar Joseph

as Devaralan

Nizhalgal Ravi

as Kadambur Sambuvarayar

Balaji Sakthivel

as Vanangamudi Munnaireyar

Makrand Deshpande

as Chief Kalarmugar

Ashwin Rao Pallaki

as Kandhamaaran

Bharat Raj

as Karka

A. Seemon

as Ugradevan

Suresh Ekambaram

as Aadhan Maran

Anil Kumar

as Pasupathi

Shakthi Ramani

as Kani

Shreema Upadhyaya

as Maathuli

Ramachandran

as Raajaliyar

Jaichandran

as Thanthongi Kalingarayar

Amzath Khan

as Mazhavarayar

Kannan

as Kundrathur Kizhar

Sundaram

as Mazhapadi Thennavan

Jaindhan

as Mummudi Pallavarayar

Nambi

as Muttharayar

Pondy Ravi

as Periya Pazhuvettarayar Commander

Bharathiraja Sakthivel

as PS Commander

Heavens Raja

as Saivite

Bhalla Bhoopalan

as Idumbankari

S. Radhakrishnan

as Nagapattinam Bikshu

Balla Bhoopalan

as Idumbankari

Arjun Chidambaram

as Varagunan

Harris Moosa

as Kalapathi

Gopi Kannadasan

as Dambulla Bikshu

Shyam Fernando

as Mahindan

Deepa Venkat

as Nandini (voice)

Madrashe

as Kundavai (voice)

Ashmini Balakrishnan

as Poonguzhali (voice)

K. Smruthi

as Vanathi (voice)

N. Azhagamperumal

as Madhuranthakan (voice)

Kamal Haasan

as Self - Narrator (voice)