An American actor. He played "[[Doogie Howser, M.D.]]" in the show of the same name, and "Barney" in the T.V. show, "[[How I Met Your Mother]]." | An American actor. He played "[[Doogie Howser, M.D.]]" in the show of the same name, and "Barney" in the T.V. show, "[[How I Met Your Mother]]." |