Question: The actor playing Barney in How I Met Your Mother played who in Batman Under The Red Hood?

Knowledge 1: How I Met Your Mother
The series concerns the adventures of Ted Mosby (played by Josh Radnor) narrating the story of how he met the mother of his children. The story goes into a flashback and starts in 2005 with a 27 - year - old Ted Mosby living in New York City and working as an architect; the narrative deals primarily with his best friends, including the long - lasting couple Marshall Eriksen (Jason Segel) and Lily Aldrin (Alyson Hannigan), womanizing - playboy Barney Stinson (Neil Patrick Harris), and news reporter Robin Scherbatsky (Cobie Smulders). The lives of all characters are entwined in each others. The series explores many storylines, including a ``will they or wo n't they ''relationship between Robin and each of the two single male friends, Marshall and Lily's relationship, and the ups and downs of the characters' careers. [SEP] Knowledge 2: Batman: Under the Red Hood
Batman: Under the Red Hood is a 2010 American animated superhero direct - to - video film produced by Warner Bros. Animation and released by Warner Home Video. It is the eighth feature in the DC Universe Animated Original Movies series. It was released on July 27, 2010. The film stars Bruce Greenwood as Bruce Wayne / Batman, Jensen Ackles as the Red Hood / Jason Todd, John DiMaggio as the Joker, Neil Patrick Harris as Nightwing / Dick Grayson, Jason Isaacs as Ra's al Ghul, and Wade Williams as Black Mask. The screenplay was written by Judd Winick, who also wrote the ``Under the Hood ''run in the monthly Batman comic.
Knowledge 1: How I Met Your Mother
The series concerns the adventures of Ted Mosby (played by Josh Radnor) narrating the story of how he met the mother of his children. The story goes into a flashback and starts in 2005 with a 27-year-old Ted Mosby living in New York City and working as an architect; the narrative deals primarily with his best friends, including the long-lasting couple Marshall Eriksen (Jason Segel) and Lily Aldrin (Alyson Hannigan), womanizing-playboy Barney Stinson (Neil Patrick Harris), and news reporter Robin Scherbatsky (Cobie Smulders). The lives of all characters are entwined in each others. The series explores many storylines, including a "will they or won't they" relationship between Robin and each of the two single male friends, Marshall and Lily's relationship, and the ups and downs of the characters' careers. [SEP] Knowledge 2: Batman: Under the Red Hood
Batman: Under the Red Hood is a 2010 American animated superhero direct - to - video film produced by Warner Bros. Animation and released by Warner Home Video. It is the eighth feature in the DC Universe Animated Original Movies series. It was released on July 27, 2010. The film stars Bruce Greenwood as Bruce Wayne / Batman, Jensen Ackles as the Red Hood / Jason Todd, John DiMaggio as the Joker, Neil Patrick Harris as Nightwing / Dick Grayson, Jason Isaacs as Ra's al Ghul, and Wade Williams as Black Mask. The screenplay was written by Judd Winick, who also wrote the ``Under the Hood ''run in the monthly Batman comic.
Knowledge 1: How I Met Your Mother
The series concerns the adventures of Ted Mosby (played by Josh Radnor) narrating the story of how he met the mother of his children. The story goes into a flashback and starts in 2005 with a 27-year-old Ted Mosby living in New York City and working as an architect; the narrative deals primarily with his best friends, including the long-lasting couple Marshall Eriksen (Jason Segel) and Lily Aldrin (Alyson Hannigan), womanizing-playboy Barney Stinson (Neil Patrick Harris), and news reporter Robin Scherbatsky (Cobie Smulders). The lives of all characters are entwined in each others. The series explores many storylines, including a "will they or won't they" relationship between Robin and each of the two single male friends, Marshall and Lily's relationship, and the ups and downs of the characters' careers. [SEP] Knowledge 2: Neil Patrick Harris
Neil Patrick Harris (born June 15, 1973) is an American actor, comedian, magician, and singer, known primarily for his comedy roles on television and his dramatic and musical stage roles. On television, he is known for playing the title character on Doogie Howser, M.D. (1989 -- 1993), Barney Stinson on How I Met Your Mother (2005 -- 2014, for which he was nominated for four Emmy Awards), and Count Olaf on A Series of Unfortunate Events (2017 onward).

Answer: Nightwing / Dick Grayson