It's Nandini's Birthday

Prajin Padmanabhan

Chinnathambi

Pavani Reddy

Nandini

Hema Rajkumar

Sevanthi

Girish

Rathnasamy (China Thambi's father)

Anila Sreekumar

Annalakshmi (Chinna Thambi's mother)

Rekha Suresh

Shanthi (Antagonist)

Rhema Ashok

Malar

Shwetha

Revathy (Chinna Thambi's cousin)

Shari

Prabhavathi (Nandhini & Arvind's mother)

Devika Deol

Shridhar

Rajasekar (Nandhini ,Arvind and Pappu's father)

Swetha

Swetha (Nandini's sister-in-law)

Aravish

VJ Pappu as Aravind (Pappu) (Nandhini's younger brother)

Krithika

Varsha (Nandini's cousin, Antagonist)

Priya

Kanchana (Varsha's mother & Nandhini's aunt, Antagonist)