Question: Rishabh Shukla, is an Indian film and television actor and a voice-dubbing artist, who speaks Hindi as his mother tongue language, as a Hindi dubbing actor he is most known as the voice of which fictional character and the main antagonist, in J. K. Rowling's series of "Harry Potter" novels?

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Nachiket Dighe: Nachiket Dighe (Marathi: नचिकेत दिघे "Nacikēta Dighē") born 11 November 1987) is an Indian actor and dubbing voice actor, who dubs in Hindi, Marathi, and English.  He is best known for his Hindi voice-dubbing of Rupert Grint's role as Ron Weasley, in the Harry Potter film series.  He is the official Hindi voice dub-over artist for Kevin Jonas and Toby Amies.  Despite that Jonas and Amies are in different age groups, Dighe is able to perfectly match the quality of their voices when it comes to dubbing their roles in Hindi.  He is also married to Rucha Dighe.

Lord Voldemort: Lord Voldemort ( , or in the films; born Tom Marvolo Riddle) is a fictional character and the main antagonist in J. K. Rowling's series of "Harry Potter" novels.  Voldemort first appeared in "Harry Potter and the Philosopher's Stone", which was released in 1997.  Voldemort appears either in person or in flashbacks in each book and its film adaptation in the series, except the third, "Harry Potter and the Prisoner of Azkaban", where he is only mentioned.

Vikrant Chaturvedi: Vikrant a/p Chaturvedi (Hindi: विक्रांत चतुर्वेदी "Vikrānta Caturvēdī", born 1 August 1974 in Allahabad) is an Indian actor and voice-dubbing artist who speaks Hindi as his mother tongue.  He has acted in Bollywood and has also voiced Indian animation and for many Hindi dubs of Hollywood and other foreign films and media.  He played Mir Khorason in "Chakravartin Ashoka Samrat".

Rishabh Shukla: Rishabh Shukla (Hindi: ऋषभ शुक्ला "R̥ṣabha Śuklā") (born 20 August 1966) is an Indian film and television actor and a voice-dubbing artist, who speaks Hindi as his mother tongue language.  On television he is most known for his role of King Shantanu in "Mahabharat" (TV series) (1988–1990) and as a Hindi dubbing actor he is most known as the voice of Lord Voldemort in Harry Potter series.

Dilip Sinha (actor): Dilip Sinha (Hindi: दिलीप सिन्हा "Dilīpa Sinhā") (born 1951) is an Indian actor and a voice-dubbing artist who principally speaks Hindi and Bhojpuri.  Dilip Sinha was staying in Marina Guest House Bandra at West Mumbai for 20 years and at the present time, he is currently staying in Goregaon West, Mumbai, India.  He is married and has 2 children.

Eliza Lewis: Eliza Lewis (Hindi: एलिजा लुईस) is an Indian people voice actress, voice-dubbing artist and a director of Indian dubbed content and foreign dubbed content.  She speaks English and Hindi as her mother tongue languages.  She did her schooling from Bombay Scottish School and was a classmate and very good friend of the youngest Ashok Chokra awardee Neerja Bhanot

Kumud Bappal: Kumud Bappal-Kamdar (Hindi: कुमुद बाप्पाल "Kumuda Bāppāla", born May 22, 1985 in Mumbai) is an Indian voice actress who specializes for dubbing foreign content into the Hindi language, which is her mother tongue language.

Manish Kaushik: Manish Kaushik (Hindi: मनीष कौशिक "Manīṣa Kauśika", born October 11, 1980) is an Indian voice-dubbing artist, radio jockey and entertainer that can speak English, Hindi and Haryanvi as his mother tongue languages.

Mona Ghosh Shetty: Mona Ghosh Shetty (Hindi: मोना घोष शेट्टी , Bengali: মোনা ঘোষ শেট্টি ; born 22 April 1978 in Mumbai) is an Indian voice-dubbing artist, singer and director.  She is the daughter of former voice-dubbing artist Leela Roy Ghosh, who was a veteran in the field.  Just like Leela, she can also speak Hindi, Bengali, English, Marathi and Urdu.  While she dubs her foreign roles in Hindi most of the time, she also performs her voice-dubbing roles in English and Bengali.  She runs a dubbing studio as president known as Sound & Vision India located in Andheri, Mumbai city.  She used to work with her mother who was the founder and president of the company before her death and they have set up the businesses together in the early 1990s.  Her mother died on 11 May 2012.

Meena Menon: Meena Menon (Hindi: मीना मेनन, "Mīnā Mēnana", born: December 27, 1970) is an Indian voice-dubbing artist and trained singer who speaks English and Hindi as her mother-tongue languages.  She currently works at Sugar Mediaz, which is an Indian dubbing studio, for Hindi dubs of foreign productions, and she mainly uses the Hindi language method majorly to perform dubbing roles for foreign productions in India, throughout the studio's run.

Supporting paragraphs: Rishabh Shukla Lord Voldemort
Answer: Lord Voldemort