page_title: David Nykl
hierarchical_section_title: David Nykl
caption_attribution_description: English: Oz Comic Con Sydney
context_page_description: David Nykl is a Czech-Canadian actor of film, television, commercials and theater. He is best known for portraying Dr. Radek Zelenka in the SyFy television series Stargate Atlantis and Anatoly Knyazev in the DC Comics series Arrow.
context_section_description: David Nykl (born 7 February 1967) is a Czech-Canadian actor of film, television, commercials and theater. He is best known for portraying Dr. Radek Zelenka in the SyFy television series Stargate Atlantis and Anatoly Knyazev in the DC Comics series Arrow.
caption: Nykl at the Sydney Oz Comic Con, 2014
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