Season 1 (2014–2018)

Main cast

• Neha Ramakrishna Gowda as Gayathri Surya (Surya's first wife)
• Sridevi Ashok (2014-2018) replacement Sruthi Shanmugha Priya (2018) as Subbulakshmi Surya (Surya's second wife)
• Eshwar Ragunathan as Surya Dharmalingam (Gowtham's brother, Gayathri and Subbulakshmi's husband)
• M. Amulaya (2014-2016) replacement Akila Raghavan (2016-2018) as Renuka Suresh (Gayathri and Subbulakshmi's friend)
• Master Bidami Shah as Ashok Surya (Gayathri's son) and Gautham Surya (Subbulakshmi' son) (Dual Roles) (2017-2018)

Additional cast

• Sadhana as Gomathy Dharmalingam (Gowtham and Surya, Vanitha's mother;Died in serial)
• Andrews Jesudoss as Dharmalingam (Gowtham and Surya, Vanitha's father)
• Srividhya Nanjan as Vanitha Azhaguraja (Gowtham and Surya's sister)
• Guhan Shanmugam as Azhaguraja (Vanitha's husband)
• Gajesh as Dhandapany (Renuka's assistant)
• Ravi Varma as Suresh (Renuka's husband)
• Narasimha Raju as Annamalai (Gayathri's father)
• Dharini as Lakshmi Annamalai (Gayathri's mother)
• Gokul as Selvam (Subbu's elder brother)
• Sri Kala Parmasivam as Rani Selvam(Selvam's wife)
• Sudha as Suresh's mother
• Anuradha as Rajalakshmi (Prasad's aunt)
• Sathyapriya as Thirupurasundari Rajamanickam (Dharmalingam's sister, Mallika's mother)
• Bombay Babu as Rajamanickam (Thirupurasundari's husband, Mallika's father)

Former cast

• Arun Kumar Rajan as Gowtham Dharmalingam (Surya's brother;died in serial)
• Sai Swetha as Vaishali
• --- as Ramana
• --- as Gurukkal (Temple priest, died in the serial)
• Lakshmi Narayanan as Gowri
• Krish as Rajadurai (Vaishali's husband, died in the serial)
• Krithika as Sandhya (died in the serial)
• Sreeja as Anbarasi Prasad
• Pollachi Babu as Anbarasi's brother
• Sangeetha Shetty as Tara
• Manush Manhmohan as Prasad
• B. Jayalakshmi as Angala Parameshwari
• --- as Vasanth (Anbarasi's former lover, died in the serial)
• Rindhya as Durga (Mutaiyah's Wife)
• Jeyamani as Rangarajan, Mutaiyah's father (died in the serial)
• Srilatha as Paravathi Rangarajan(Muthaiyah's mother)
• Deepa Nethran as Sathish's mother
• Sunitha as Abhinaya (Abhi), Muthiya's sister
• Kalaranjini as Gajalakshmi
• Bhavani as Lakshmi Annamalai (Replaced by Dharini)
• Nalini as Hostel Warden

Season 2 (2018–2020)

Main cast

• Srithika Saneesh as Vidhya Ashok (Arjun and Lakshmi's first daughter)
• Arnav as Ashok Surya (Surya and Gayathri's son) and Gowtham Surya @ Rocky (Surya and Subbulaksmi's son)
• Keerthi Jai Dhanush as Swetha Arjun (Arjun and Shyamala Devi's daughter)

Recurring Cast

• Swathi Reddy as Kalyani Vetrimaran (Vidhya's sister, Arjun and Lakshmi's middle daughter)
• Pandi Kamal as Vetrimaran Ramanathan (Kalyani's husband, Vishalakshi and Ramanathan's son)
• R.Poongkodi as Dharani Azhaguraja (Vanitha and Azhaguraja's daughter)
• Sumangali as Vishalakshi Ramanathan (Vetrimaran's mother)
• as Mani (Vishalakshi's elder brother, Vetrimaran's uncle)
• Shanthi as Lakshmi Arjun (Vidhya's, Kalyani's & Vasuki's mother)
• Sathish as Arjun (Vidya, Vasuki, Kalyani and Swetha's father, Lakshmi and Shyamala's husband)
• Shilpa as Shyamala Devi Arjun (Swetha's mother)
• Nivedhitha Pankaj as Vasuki (Vidhya's younger sister, Arjun and Lakshmi's youngest daughter)
• Sai Gopi as Sundaram (Lakshmi's brother; Saravanan's father)
• "Bhandham" Saval Ram as Suruli (Sundaram's assistant)
• Suruli as Swami (Shyamala's assistant)
• "Ahalya Mali" as Nathuram Settu (Poonam and Malini's father)
• Karthick as Saravanan Sundaram (Geetha's husband, Sundaram and Karpagam's son)
• Asritha Kingini as Geetha Saravanan (Saravanan's wife, Mallika and Ramachandran's daughter)
• Chandrasekharan as Naidu (Rocky's adoptive uncle)
• Karthick Raj as Mugundhan

Former cast

• Neha Gowda as Thayamma @ Gayathri Surya (Surya's first wife, Ashok's mother) (Replaced by Gayathri Devi)
• Shruthi Shanmugam Priya as Subbulakshmi Surya (Surya's second wife, Ashok's step-mother and Gautham's mother) (Replaced by Vanitha Krishnachandran)
• Eshwar Raghunathan as Surya Dharmalingam (Gayathri and Subbulakshmi's husband, Ashok and Gautham's father, Died in serial)
• Shari as Gomathy Dharmalingam (Surya's mother, Ashok and Gautham's grandmother, Died in serial)
• R.Poongkodi as Vanitha Azhaguraja (Surya's sister, Dharani's mother Died in serial)
• Guhan Shanmugam as Azhaguraja (Dharani's father)
• Saithra Gruthika as Kalyani (Vidhya's sister) (Replaced by Swathi Reddy)
• --- as Valli (Swetha's spy)
• ---- as Poonam (died in serial)
• ---- as Vimal (Poonam's fiancé)
• Sathyapriya as Thirupurasundari Rajamanickam (Dharmalingam's sister and Mallika's mother)
• Ranjini Pradeep as Malini (Poonam's elder sister, Died in serial)
• C. Ranganathan as Ramanathan (Vetrimaran's father, Died in serial)
• Gayathri Devi as Gayathri Surya @Thayamma (Surya's 1st wife, Ashok's mother and Gautham's step mother)
• Vanitha Krishnachandran as Subbulaksmi Surya (Surya's 2nd wife, Gautham's mother And Ashok's step mother)
• Androos Jesudas as Dharmalingam (Surya's father, Ashok and Gautham's grandfather)
• Ravikanth as Dhandapaany (Thayamma's assistant)
• Vinod as Ranjith (Geetha's Ex fiancée)
• Issac Varkees as Ramachandran (Mallika's husband, Geetha's father)
• Mona Bedre as Mallika Ramachandran (Thirupurasundari and Rajamanickam's daughter)
• Priya as Karpagam Sundaram (Saravanan's mother)
• Kavya Varshini as Valli (Saravanan's elder sister)
• Birla Bose as Valli's husband