Kamal Haasan (born 7 November 1954) is an Indian film actor, director, screenwriter, producer, playback singer and lyricist who works primarily in Tamil cinema.
 Kamal has won several film awards including three National Film Awards, the second-most by any Indian actor, and nineteen Filmfare Awards.
 His production company, Rajkamal International, has produced several of his films.
Akkineni Nagarjuna (Telugu: అక్కినేని నాగార్జున; born 29 August 1959) is an Indian film actor, producer, dancer, entrepreneur and television presenter who works primarily in Telugu cinema and television.
 He has acted in over ninety films as an actor in a lead.
 He has also had supporting and cameo roles, including Bollywood and Tamil films.
 He has received nine state Nandi Awards, three Filmfare Awards South and a National Film Award-Special Mention.
 In 1996 he produced, "Ninne Pelladata", which has garnered the National Film Award for Best Feature Film in Telugu for that year.
Shivaji Rao Gaekwad (born 12 December 1950), known by his mononymous stage name Rajinikanth, is an Indian film actor, who works primarily in Tamil cinema.
 He began acting in plays while working in the Bangalore Transport Service as a bus conductor.
 In 1973, he joined the Madras Film Institute to pursue a diploma in acting.
 Following his debut in K. Balachander's Tamil drama "Apoorva Raagangal" (1975), his acting career commenced with a brief phase of portraying antagonistic characters in Tamil films.
Sampath Raj Kumar (born 25 December 1968) is an Indian film actor who works primarily in the Tamil , Telugu and Malayalam films.
 He is quite popular in Kannada film industries also.
 His mother tongue is Tamil.
 He is best known for appearing in each film of director Venkat Prabhu's comedy trilogy, consisting of "Chennai 600028", "Saroja" and "Goa".
 He has also acted in supporting roles in various other films.
 He is mostly known in negative roles.
 He played a brief role as Ekambram in "Malgudi Days" for the episode 'Neighbors Help', which was directed by Kavitha Lankesh.
Viraj (also credited as Hari Prashanth) is an Indian film actor, who has appeared in Tamil language films.
 The son of dubbing artiste S. N. Surendar, Viraj made his debut as a child actor by appearing in "Uyirile Kalanthathu" (2000), before working in "Anniyan" (2005) and "Chennai 600028" (2007) in supporting roles.
Akkineni Nagarjuna (born August 29, 1959) is an Indian film actor and producer who works primarily in the Telugu Cinema.
 He is often called "King" of Telugu Movie Industry.
 He has acted in over ninety films as an actor in a lead, supporting and cameo roles, including Bollywood and Kollywood films.
 He has received nine state Nandi Awards, three Filmfare Awards South and one Special Mention at the National Film Awards.
 The 1996 film "Ninne Pelladata" which he produced, was declared the Best Telugu film of the year at the National Film Awards.
This is the filmography of Mammootty.
 Mammootty is an Indian film actor who works primarily in Malayalam cinema, although he has also appeared in films in other Indian languages.
Puneeth Rajkumar (born 17 March 1975) is an Indian film actor and television presenter who works primarily in Kannada cinema.
 Puneeth has been a lead actor in 25 films; as a child he appeared in films featuring his father, Rajkumar.
 His performances in "Vasantha Geetha" (1980), "Bhagyavantha" (1981), "Chalisuva Modagalu" (1982), "Eradu Nakshatragalu" (1983) and "Bettada Hoovu" (1985) were praised.
 He won the National Film Award for Best Child Artist for his role of Ramu in "Bettada Hoovu".
 Puneeth's first lead role was in 2002's "Appu".
Ranganath (Telugu: రంగనాథ్ ); (born Tirumala Sundara Sri Ranganath) (17 July 1949 – 19 December 2015) was an Indian film actor known for his works primarily in Telugu cinema, Telugu Theater, television, and a few Tamil films.
 In a film career spanning more than forty years, Ranganath starred in more than three hundred feature films in a variety of roles.
 He made his debut with the 1969 Telugu film "Budhimantudu".
S.N.Surendar is an Indian Playback singer, who primarily works in Tamil films.
 He has sung over 500 songs under various music directors for Telugu, Malayalam, Kannada and Tamil languages.

Question: The father of indian film actor Viraj works primarily in films in which language ?
Answer: Tamil