Barney Stinson is the womanizing, suit-loving character from the American sitcom How I Met Your Mother, which aired from 2005 to 2014 and made Neil Patrick Harris a household name for the role. His over-the-top confidence and elaborate schemes became a signature part of the show, and short clips of his reactions were widely shared as the series found a second life on streaming and social media. The evil laugh in particular stuck because it works without context, instantly signalling mischief, and it continues to appear in reaction videos, gaming edits and meme compilations.