A 13-episode anime television series adaptation by Gonzo, directed by Umanosuke Iida and Yasunori Urata, with screenplay by Chiaki J. Konaka was broadcast on Japan's Fuji Television from October 2001 to January 2002. A original video animation (OVA), titled "Hellsing Ultimate", was produced by Geneon. It followed the manga storyline more closely than the anime series. The series spanned 10 episodes, released in Japan between February 2006 and December 2012. In North America the series was first licensed by Geneon Entertainment and later by Funimation and launched from December 2006 to October 2014. It was broadcast on Adult Swim's Toonami programming block in 2014.