Theeya Velai Seiyyanum Kumaru

Siddharth

as Kumar

Hansika Motwani

as Sanjana

Santhanam

as Nokia/Sathish

Ganesh Venkatraman

as George

Vidyullekha Raman

as Vidya

RJ Balaji

as Karna

Manobala

as Pencil Maama/Cone Ice

Chitra Lakshmanan

as Kunchithapadam

Devadarshini

as Kumar's sister

Nalini

as Annakilli

Rethika Srinivas

as IT Manager

Iswarya Menon

as Sanjana's Friend

Bosskey

as Devadarshini's Husband

Thalapathi Dinesh

as Annakili's Brother

John Vijay

as Military Colonel (Special Appearance)

Delhi Ganesh

as Bombay Ganesh (Special Appearance)

Vishal Krishna

as Himself (Special Appearance)

Samantha Ruth Prabhu

as Special Appearance

Khushboo

as Special Appearance

Karunakaran

as Special Appearance

George Vishnu

as Raghavendra Rao

Meena Vasu