மாப்பிள்ளை

Dhanush

— Saravanan

Manisha Koirala

— Rajeshwari

Hansika Motwani

— Gayathri

Vivek

— Child Chinna / James Pandiyan / Youth

Dr. Sharmila

— Saravanan's Sister

Sriranjini

— Saravanan's mother

Ashish Vidhyarthi

— Devaraj

Sathyan Sivakumar

— Chinna's friend

Bhalajie

— Chinna's friend

Cell Murugan

— Chinna's friend

Manobala

— Rajeshwari's astrologer

Chitti Babu

— Rajeshwari's PA

Madhan Bob

— Rajeshwari's assistant

Thiyagu

— Chinna's assistant

Kadhal Thandapani

— Industrialist

Aryan

— Aathi

Vaiyapuri

Vichu Vishwanath

— Saravanan's brother-in-law

Baba Baskar

Ramesh Thilak

— (uncredited)

Rohini

— Rajeshwari (voice)