Naai Sekar

Sekar who works at an IT company in Chennai gets bitten by a neighbourhood scientist's dog, and their souls swapped.

Sathish

Naai Sekar

Pavithra Lakshmi

Pooja

Shiva

Dog named Padayappa (voice)

Sriman

Livingston

Swaminathan

Ganesh

Ilavarasu

Manobala

Gopi

Lollu Sabha Maaran

Kishore Rajkumar

George Mariyan

Rajarajan

G. Gnanasambandam

Sekar's Father

Nithya

Sekar's Mother

KPY Bala