"Navarasa Nayagan" Karthik whose real name is Murali is son of veteran actor Muthuraman. Director Bharathiraja saw him when he went on a courtesy vist to see Muthuraman and immediately decided to cast him in his movie "Alaigal Oivathillai" to which the young Karthik immediately agreed. He was doing his second year undergraduate course in New college then. Alaigal Oivathillai went on to become a huge hit of the year and a new star was then born in the Tamil Cinema.
Karthik's career graph is marked with many peaks where he had some silver jubilee movies followed by flops. But he remained the favourite actor for many directors like Manirathnam, Visu, Sundar C. Some of his hit films include Alaigal Oivathillai, Mouna Raagam, Agni Natchatram, Varusham 16, Kizhakku Vaasal, Ullathai Alli Thaa and Amaran.
| Film name | Director | Release Year |
|---|---|---|
| Puli Vesham | P. Vasu | 2011 |
| Maanja Velu | A. Venkatesh | 2010 |
| Raavanan | Mani Ratnam | 2010 |
| Kalakkura Chandru | Raviraja | 2007 |
| Kusthi | Raj Kapoor | 2006 |
| Indru | Naveen Muthuraman | 2003 |
| Game | John | 2002 |
| Ullam Kollai Poguthae | Sundar C. | 2001 |
| Lovely | Shakti Chidambaram | 2001 |
| Azhagana Naatkal | Sundar C. | 2001 |
| Thai Poranthachu | Kalaimani | 2000 |
| Sandhitha Velai | Ravichandran | 2000 |
| Kannan Varuvaan | Sundar C | 2000 |
| Kuberan | Rama Narayanan | 2000 |
| Seenu | P. Vasu | 2000 |
| Chinna Raja | Chitra Lakshmanan | 1999 |
| Nilave Mugam Kaattu | Mu. Kalangiyam | 1999 |
| Anantha Poongathe | Raj Kapoor | 1999 |
| Suyamvaram | Ten Directors | 1999 |
| Rojavanam | Selva | 1999 |
| Unakkaga Ellam Unakkaga | Sundar C. | 1999 |
| Udhavikku Varalaamaa | Gokula Krishnan | 1998 |
| Sundara Pandian | R. Raghu | 1998 |
| Harichandra | Cheyyar Ravi | 1998 |
| Unnidathil Ennai Koduthen | Vikraman | 1998 |
| Pooveli | Selva | 1998 |
| Sishya | Selva | 1997 |
| Pistha | K. S. Ravikumar | 1997 |
| Kizhakku Mugam | M. Anna Thurai | 1996 |
| Ullathai Allitha | Sundar C. | 1996 |
| Katta Panchayathu | R. Raghu | 1996 |
| Poovarasan | Gokula Krishnan | 1996 |
| Mettukudi | Sundar C. | 1996 |
| Gokulathil Seethai | Agathiyan | 1996 |
| Muthukalai | Gokula Krishnan | 1995 |
| Lucky Man | Prathap K. Pothan | 1995 |
| Nandhavana Theru | R. V. Udayakumar | 1995 |
| Marumagan | Manivasagam | 1995 |
| Chakravarthy | M. Baskar | 1995 |
| Thotta Chinungi | K. S. Adhiyaman | 1995 |
| Seeman | Raj Kapoor | 1994 |
| Chinna Kannamma | R. Raghu | 1993 |
| Ponnumani | R. V. Udayakumar | 1993 |
| Kathirukka Neramillai | Kulothungan | 1993 |
| Amaran | K. Rajeswar | 1992 |
| Unna Nenachen Pattu Padichen | Guru Dhanapal | 1992 |
| Nadodi Thendral | Bharathiraja | 1992 |
| Nadodi Pattukkaran | N. K. Viswanathan | 1992 |
| Idhu Namma Bhoomi | P. Vasu | 1992 |
| Suyamariyadhai | R. Vijay Ganesh | 1992 |
| Deiva Vaakku | M. S. Madhu | 1992 |
| Vanakkam Vaathiyare | Ameerjan | 1991 |
| Irumbu Pookkal | G. M. Kumar | 1991 |
| Gopura Vasalile | Priyadarshan | 1991 |
| Vigneshwar | R. Raghu | 1991 |
| Idhaya Thamarai | K. Rajeshwar | 1990 |
| Mr. Karthik | Kalaivanan Kannadasan | 1990 |
| Unnai Solli Kutramillai | Ameerjan | 1990 |
| Kalyana Raasi | K. Sivaprasad | 1990 |
| Periya Veettu Panakkaran | N. K. Viswanathan | 1990 |
| Kizhakku Vasal | R. V. Udayakumar | 1990 |
| Edhir Kaatru | Mukta S. Sundar | 1990 |
| Kathal Oivadilai | Manivannan | 1989 |
| Pandi Nattu Thangam | T. P. Gajendran | 1989 |
| Radha Kadal Varadha | M. Deenadayalan | 1989 |
| Sattathin Thirappu Vizha | 1989 | |
| Solai Kuyil | Rajan | 1989 |
| Thirupumunai | Kalaivanan Kannadasan | 1989 |
| Varusham 16 | Fazil | 1989 |
| Agni Nakshatram | Manirathnam | 1988 |
| En Jeevan Paduthu | R. Sundarrajan | 1988 |
| Kalicharan | Raja | 1988 |
| Kan Simittum Neram | Kalaivanan Kannadasan | 1988 |
| Solla Thudikuthu Manasu | B. Lenin | 1988 |
| Urimai Geetham | R. V. Udayakumar | 1988 |
| Dhoorathu Patchai | Robert - Rajasekhar | 1987 |
| Ore Ratham | K. Swarnam | 1987 |
| Parisam Pottachu | Chozha Rajan | 1987 |
| Vanna Kanuvagal | Amirjohn | 1987 |
| Velicham | K. Vijayan | 1987 |
| Dharma Pathini | Ameerjan | 1986 |
| Mouna Raagam | Manirathnam | 1986 |
| Natpu | Ameerjan | 1986 |
| Oomai Vizhigal | R. Aravindraj | 1986 |
| Aval Sumangalithan | Visu | 1985 |
| Ketti Melam | Visu | 1985 |
| Mookkanan Kaiyiru | S. Subbaiah | 1985 |
| Nalla Thambi | S. P. Muthuraman | 1985 |
| Viswanathan Velaivenum | Raghuraman | 1985 |
| Nallavanukku Nallavan | S. P. Muthuraman | 1984 |
| Nandri | Ramanarayanan | 1984 |
| Ninaivugal | M. Velusami | 1984 |
| Peyveedu | Ramanarayanan | 1984 |
| Rajathandiram | Visu | 1984 |
| Apoorva Sagotharigal | R. Thyagarajan | 1983 |
| Ayiram Nilave Vaa | A. S. Prakasam | 1983 |
| Bhagavathipuram Railwaygate | R. Selvaraj | 1983 |
| Maarupatta Konangal | N. Murugesh | 1983 |
| Oru Kai Parpoam | S. P. Muthuraman | 1983 |
| Thooram Adhigamillai | Robert Rajasekaran | 1983 |
| Adisaya Piravigal | R. Thyagarajan | 1982 |
| Agaya Gangai | Manobala | 1982 |
| Ilanjodigal | Ramanarayanan | 1982 |
| Kanne Radha | Ramanarayanan | 1982 |
| Kelvium Nanee Badhilum Nanee | N. Murugesh | 1982 |
| Neram Vanthachu | M. Vellaisami | 1982 |
| Ninaivellam Nithya | C.V. Sridhar | 1982 |
| Pakkathu Veetu Roja | M. Bhaskar | 1982 |
| Valibamey Vaa Vaa | P. Bharathiraja | 1982 |
| Alaigal Oivathillai | Bharathiraja | 1981 |
