Tony Stark is the Marvel superhero also known as Iron Man, portrayed in the Marvel Cinematic Universe by Robert Downey Jr. Short clips of the character have long circulated as reaction sounds because his confident, witty style translates easily outside the films. On soundboards and in short-form video, a one-second Tony Stark snippet is less about the original scene and more about instant attitude, which is why creators keep reusing these brief lines for comebacks, reveals and ironic boasts.