Main

• Raveena Daha^[3][4][5] as Shakthi (Sathya) – Karthik and Mallika's daughter and Varun's wife
• Shilpa^[6] as Shruthi - Raghav and Kadhambari's daughter; Tharun's wife
• Salmanul Faris as Varun Manoharan - Manohar and Kasthuri's elder son; Shakthi's husband^[7]
• Rahul Ramachandran as Tharun Manoharan – Manoharan and Kasthuri's younger son; Varun's brother; Shruthi's husband.
• Rajeev Parameshwar as Karthik Krishna – Playback singer; Parvati's younger son; Murali's brother; Mallika and Kaadhambari's husband; Shakthi's father and Shruthi's step father.^[8]
• Chippy Ranjith^[9] as Mallika- Natural singer, Palani's sister. Karthik's first wife and Shakthi's mother
• Anusree Chembakaserry as Kaadhambari- Vishwanathan and Rukmani's elder daughter. Karthik's second wife and Shruthi's mother

Recurring

• A. Revathy as Parvathi Krishna – Murali's and Karthik's mother; Shakthi and Shruti's grandmother.
• Uday Mahesh / Krishna Kumar Menon as Manoharan – Karthik's best friend; Sheela's brother; Kasthuri's husband; Varun and Tharun's father.
• Divya Binu as Sheela – Manoharan's sister; Varun and Tharun's aunt; Kasthuri's sister-in-law.
• Manjula / Remya Sudha as Kasthuri Manoharan – Manoharan's wife; Varun and Tharun's mother.
• Anjali Devi as Rukmani Vishwanathan – Vishwanathan's wife; Kadhambari and Maya's mother; Shruthi's grandmother.
• Kailas Nath as Sugumar - Shakthi's uncle.
• Supergood Kannan as Pazhaniswamy aka Pazhani – Mallika's brother; Swarna's husband; Nila's father; Shakthi's uncle.
• Seema G. Nair as Swarna Pazhaniswamy – Pazhani's wife; Nila's mother; Shakthi's aunt.
• Anand Babu as Vishwanathan – Rukmani's husband; Kaadhambari and Maya's father; Shruthi's grandfather
• Reshma Nandhu as Shalini

Release

The first promo was unveiled on 11 January 2021, featuring the cast, the second promo was unveiled on 28 January 2021,^[10] by revealing the release date.