R. Neelakantan started acting in school dramas from school days, continuing through his college days at Vivekananda College. He along with Ambi (Cho Ramaswamys brother) and Narayanasamy started Viveka Fine Arts. He acted in plays like Muhammad bin Tughluq, Endru Thaniyum Indha Sudandira Dhaagam, Quo Vadis, Unmayae Un Vilai Enna?, Yarukkum Vetkamillai. In 1966 he made his film début Aayiram Poi directed by Muktha Srinivasan. He has acted in plays
Naangal
⭐ 0Arangetram
⭐ 4.5Chinnappadass
⭐ 0Kaaviya Thalaivan
⭐ 0Priyamaana Thozhi
⭐ 6.4Sila Nerangalil Sila Manithargal
⭐ 6.8Panchatanthiram
⭐ 7.1Trisha Illana Nayanthara
⭐ 5.333Gauravam
⭐ 6.7Muhammad bin Tughluq
⭐ 9Dheena
⭐ 5.7Jerry
⭐ 0Pammal K. Sambandam
⭐ 6.5Velum Mayilum Thunai
⭐ 5Janatha Nagar Colony
⭐ 0Anniyan
⭐ 7.343Anbanavan Asaradhavan Adangadhavan
⭐ 6.4Nootrukku Nooru
⭐ 6Avvai Shanmugi
⭐ 7Kalyana Samayal Saadham
⭐ 6.8Kadhala Kadhala
⭐ 6.9Suryavamsam
⭐ 7.1Rendu
⭐ 4Aayiram Poi
⭐ 0Vetri Vinayagar
⭐ 0Amma Ponnu
⭐ 0Kaliyuga Kannan
⭐ 0Pudhiya Mannargal
⭐ 0Cinema Paithiyam
⭐ 0Then Sindhudhe Vaanam
⭐ 0Sathyam
⭐ 0Pala Parikshai
⭐ 0Kathanayagan
⭐ 10