Vikram as Aditha Karikalan

Aishwarya Rai Bachchan as Nandini / Oomai Rani

Ravi Mohan as Arunmozhi Varman

Karthi as Vanthiyathevan

Trisha Krishnan as Kundavai

Jayaram as Alwarkkadiyan Nambi

Prakash Raj as Sundara Chozhar

R. Sarathkumar as Periya Pazhuvettarayar

R. Parthiban as Chinna Pazhuvettarayar

Kishore as Ravidasan

Aishwarya Lekshmi as Poonguzhali

Sobhita Dhulipala as Vanathi

Ashwin Kakumanu as Sendhan Amudhan

Rahman as Madhurantakan

Jayachitra as Sembiyan Maadevi

Prabhu as Periya Velaar

Lal as Malayaman

Vikram Prabhu as Parthibendran Pallavan

Riyaz Khan as Soman Sambavan

Vinay Kumar Joseph as Devaralan

Arjun Chidambaram as Varagunan

Yog Jappie as Karuthiruman

Nizhalgal Ravi as Kadambur Sambuvarayar

Mohan Raman as Anirudha Brahmarayar

Vidhya Subramanian as Vaanavan Maadevi

Vinodhini Vaidyanathan as Vasuki

Ashwin Rao Pallaki as Kandhamaaran

Shyam Fernando as Mahindan

Harris Moosa as Kalapathi

Babu Antony as Khottiga Amogavarshan

Gopi Kannadasan as Dambulla Bikshu

Balaji Sakthivel as Vanangamudi Munnaireyar

Santhosh as Young Aditha Karikalan

Sara Arjun as Young Nandini

Raaghavan Murugan as Amarabujanga Pandiyan

Nassar as Veerapandiyan

Bharat Raj as Karka

Suresh Ekambaram as Aadhan Maran

Nimmy Raphael as Rakkamma

A. Seemon as Ugradevan

Anil Kumar as Pasupathi

Shakthi Ramani as Kani

Ramachandran as Rajaaliyar

Jaichandran as Thanthongi Kalingarayar

Amzath Khan as Mazhavarayar

Kannan as Kundrathur Kizhar

Sundaram as Mazhapadi Thennavan

Jaindhan as Mummudi Pallavarayar

Nambi as Muttharayar

Bharathiraja Sakthivel as PS Commander

Heavens Raja as Saivite

Balla Bhoopalan as Idumbankari

Manoj Kumar K. as CP Guard 1

Aadesh Bala as CP Guard 2

Prabhu Mani as CP Guard 3

Vikram as CP Guard 4

Deepa Venkat as Nandini (Voice)

Krithika Nelson as Kundavai (Voice)

Ashmini Balakrishnan as Poonguzhali (Voice)

K. Smruthi as Vanathi (Voice)

N. Azhagamperumal as Madhuranthakan (Voice)

Kamal Haasan as Narrator