Elenco - Ethir Neechal
Sivakarthikeyan
Kunjithapatham/Harish
Priya Anand
Geetha
Nandita Swetha
Valli
Jayaprakash
Coach
Ravi Prakash
Raja Singh
Sathish
Peter
Surekha Vani
Kunjithapatham's Mother
Suza Kumar
Kunjithapatham's first love interest
Manobala
Astrologer Gunashekar Raja
Madhan Bob
Office Manager
Dhanush
Special Appearance in "Local Boys" Song
Nayanthara
(Special appearance)
அனிருத் ரவிச்சந்திரன்
Bar Waiter (Cameo Appearance)
Balaji Patturaj
Himself (Host Of Chennai Marathon)
Dinesh Ravi
Dinakaran