Tony Stark first appeared in Marvel Comics in 1963 as the inventor behind the Iron Man armor, but the voice most fans recognise today comes from Robert Downey Jr., who played him from Iron Man in 2008 through the Avengers films. Short clips of his sarcastic, confident delivery spread widely on soundboards and in fan edits, where a single line can stand in for a smug reaction. The character remains a staple of superhero memes because that tone is instantly identifiable, even without the suit or the scene around it.