N. Viswanathan (1929 – 17 November 2010), popularly known as Calcutta Viswanathan in theTamil film industry, was an Indian actor and academic. A Tamilian by birth, he moved to Calcutta(now Kolkata) at a young age and joined St. Xavier's College, Calcutta as an English professor and continued to teach there for more than 40 years. Viswanathan was also a well-known public speaker. He started acting films after entering into the Bengali films by acting in Mrinal Sen'sPunascha and Satyajit Ray's Kanchenjungha.[2] In an acting career spanning over 40 years Viswanathan appeared in nearly 100 films in Bengali, Tamil and English. Viswanathan was a member several theatre groups and also formed the "Calcutta Players", an acting troupe
Moondru Mudichu
(The unnamed widower)
Sunya Theke Suru
Sagar Balaka
Byatikrami
Kanchenjungha
(Bannerjee)
Andhakarer Shabdo
Uttar Meleni
The Mist
(Raghunath)
Saheb
Rodon Bhara Basanta
Ekhonee
Paka Dekha
Baba
(Baba's Father)
Barnali
(Dr. Ghosh)
Dialogue and Delirium
Over Again
Kann Sivanthaal Mann Sivakkum
Enakkul Oruvan
Oh Maane Maane
Duti Mon
Kanchenjunga
Anustup Chhanda