Main cast •
Monisha Arshak as Janaki Arjun Sundareshwar (Jaanu) • a childlike, innocent girl, who is forced to marry the physically challenged man Arjun, she inspires Meenakshi as her idol. • Surya Darshan as Arjun Sundareshwar • a disabled and short tempered but rich man. He hates Jaanu, since when they met each other, later develops feeling for her. •
Pragathi as Meenakshi Sundareshwar (Arjun's mother) • a kind-hearted and powerful business woman, she looks happy to the outworld but she is actually sad thinking about Arjun's life. •
Neelima Rani as Durga Raghavan • Arjun's cousin, she believes that Meenakshi has caused her misfortunes and seeking for revenge on her. •
Gayathri Yuvraaj as Renuka (Renu) • Jaanu's elder sister who runs away when her marriage got fixed with Arjun, later she comes back to get revenge on Meenakshi for humiliating her by marrying Arjun's younger brother, Arun, also to protect Jaanu by standing up to justice. • Santhosh as Arun Sundareshwar • Arjun's younger brother, he has been taking care of Meenakshi's construction business, he falls in love with Renu and eventually married her. • Gayathri Priya as Devi (Durga's mother) • She is an insane woman who was locked in a room and cared by Durga but rescued by Jaanu later, she hates Meenakshi for ruining her life.
Supporting cast • Maanas Chavali as Raghavan (Durga's husband) • Ashwin Karthik as Raghu (Vijaya's husband) •
Myna Nandhini as Vijaya (Yamuna's daughter-in-law) • Kiruba as Yamuna (Ep: 252–390, Arjun's aunt) • Shyam as Selvam (Arjun's caretaker) • Jaffee Pears as Aarthi (Yamuna's daughter) •
R. Aravindraj as Natarajan (Janaki's and Renu's father) • Rathnaraj as Rathnam (Meenakshi's housekeeper) •
VJ Vishal as Akash (Yamuna's son) • Sangeetha V
Former • Chaitra Rao Sachin (Ep: 1-41) /
Nithya Ravindran as Yamuna (Ep: 42-251, replaced by Kiruba) • "Dubsmash" Vishnu Unnikrishnan as Arun Sundareshwar (replaced by Santhosh) • Madhumitha Illayaraja as Aarthi (replaced by Jafee Pears) • Vandana Brundha as Subbulakshmi (Arjun's ex-girlfriend in past) • Navya Swamy as Shilpa (Arjun's childhood friend) • Gemini as Shilpa's father • Mercy Leyal as Shilpa's mother • Ravichandran as Sivathanam (Meenakshi's rival) • Unknown as Vaitheeshwari Sivathanam (Sivathanam's wife) •
Sulakshana as Thayyamma • Shilpa Mary Teresa as Anitha (Arjun's friend) •
Fathima Babu as Judge Kaveri •
Ravikumar as Siddhar • Suchitra as Lakshmi (Siddhar's assistant) • Sanju as Professor (Durga's helper)
Cameo • Amruth Kalam in a special appearance •
Sridevi Ashok in a special appearance • Yamuna Chinnadurai as Maaya (Durga's assistant, Cameo) •
Priya as Head of Tribal, special appearance • Unknown as Selaikkari Amman (Goddess) ==Production==