Question: Lada Negrul, is a Russian actress and poet, and is the author and producer of documentaries about which highly popular Russian actor who starred in fifty seven films including several TV serials, such as "Spetsnaz" (2002)?

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Keval Vora: Keval Vora (Hindi:केवल वोरा ) also named as K , is an Indian actor who has done TV serials &TV Commercials.  He is popularly known for his role of Keval in the fairy tale TV series "Baal Veer" from 2012 to 2016 & completed 1111 episodes.  on SAB TV.  K has also appeared in other TV serials such as Taarak Mehta Ka Ootah Chashmah as Rocky as a goon, Parichay.  K has also worked in TV Commercials for Safed Detergent Ad Film, James Bond promo Ad and many more.

Lada Dance: Lada Dance, born Lada Volkova in Kaliningrad on September 11, 1969, is a popular Russian jazz and dance music singer.

Seema G. Nair: Seema G. Nair is born (May 16 , 1965) an Indian actress who appears in Malayalam films and Malayalam TV series.  She is one of the prominent supporting actresses in Malayalam cinema.  She has acted in more than 50 films and several TV serials.She has won the Kerala state television award for best actress in 2014 for the telefilm Moksham

Lada Negrul: Lada Negrul, (Russian: Лада Негруль , born April 18, 1972) is a Russian actress and poet.  She works in Moscow "Russian House" theater and played main roles in ten Russian movies, including a TV serial "Dirty Work".  She is author and producer of documentaries about Irina Skobtseva, Sergei Bondarchuk, and Vladislav Galkin.  Lada Negrul published four books of her poetry and a book about Alexander Men.  She also performs sound poetry and songs by Alexander Galich and Vladimir Vysotsky

Varkala Sathyan: Varkala Sathyan (born Narayanan Sathyaseelan) is an Indian film, TV and stage actor.  He has acted in over 12 Malayalam films, 5 Malayalam TV serials and 2 Arabic TV serials.

Vladislav Galkin: Vladislav Borisovich Galkin (Russian: Владисла́в Бори́сович Га́лкин ; 25 December 1971 – 25 February 2010) was a highly popular Russian actor who starred in fifty seven films including several TV serials, such as "Spetsnaz" (2002), "The Master and Margarita" (2005–2006) and "Dikari" (2006).

Halit Refiğ: Halit Refiğ (5 March 1934, İzmir – 11 October 2009, İstanbul) was a Turkish film director, film producer, screenwriter and writer.  He made around sixty films, including feature films, documentaries and TV serials.  He is considered to be the pioneer of the National Cinema movement and the initiator of the production of TV serials in Turkey.

Krishna Kumar (actor): Krishna Kumar is an Indian film actor who has appeared in Malayalam and Tamil in supporting roles as well in many TV serials.  He is from Kerala.  He was a TV news reader and later he started his acting with the 1994 Malayalam film "Kashmeeram".  After that he had acted several Malayalam films and Malayalam TV serials.  When he faced less opportunities in Malayalam, he tried his luck in Tamil by acting in some TV serials.  It helped him to get some good roles in Tamil films such as Billa II, Deivathirumagal, Mugamoodi etc. as well as in some Malayalam movies.

Ananya Chatterjee: Ananya Chatterjee (born 16 January 1980) is a Bengali film actress known for her National Award-winning role in "Abahoman".  She started her career as a TV actress.  She acted in several TV serials and films, including three directed by Anjan Dutt.  Her role as the muse of a married director in "Abahoman", directed by Rituparno Ghosh, won her the National Film Award for Best Actress.

Vikrant Rai: Vikrant Rai (born January 1, 1986) is an Indian Actor known for his works in Indian TV Serials and Movies.  He starred in the Indian TV serials "Kkavyanjali" (2005 -2006) which aired on Star Plus and "Maayka"( 2007 -2009) and "Ghar Ki Lakshmi Betiyaan" (2006 - 2009) which both aired on Zee TV & later made his Bollywood debut in a leading role with film UVAA (2015).

Supporting paragraphs: Lada Negrul Vladislav Galkin
Answer: Vladislav Galkin