Silambarasan as Shiva

Nayanthara as Mylaa

Andrea Jeremiah as Priya

Soori as Vaasu

Arjunan Nandakumar as Shiva's Friend

Jayaprakash as Shiva's Father

Madhusudhan Rao as Priya's Father

Dheepa Ramanujam as Mylaa's Mother

Jai Sampath as Surya, Mylaa's relative (guest appearance)

Santhanam as Sherlock Holmes (extended cameo appearance)

Udhayabanu Mageswaran as Mylaa's Father

Adah Sharma as Special Appearance in the song "Maaman Waiting"

Satyam Rajesh as Shiva's and Vaasu's friend