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)

Krithika Nelson as Kundavai (Voice)

Ashmini Balakrishnan as Poonguzhali (Voice)

K. Smruthi as Vanathi (Voice)

N. Azhagamperumal as Madhuranthakan (Voice)

Kamal Haasan as Narrator (voice)