Sivakarthikeyan
Kunjithapatham/Harish
Surekha Vani
Kunjithapatham's Mother
Suza Kumar
Kunjithapatham's first love interest
Manobala
Astrologer Gunashekar Raja
Dhanush
Special Appearance in "Local Boys" Song
Nayanthara
(Special appearance)
Anirudh Ravichander
Bar Waiter (Cameo Appearance)
RJ Balaji
Himself (Host Of Chennai Marathon)