The Fearsome Foursome is a fictional supervillain group, appearing in American comic books, it included which  fictional character, a supervillain appearing in American comic books published by Marvel Comics?
Klaw (Marvel Comics) Klaw (Ulysses Klaue) is a fictional character, a supervillain appearing in American comic books published by Marvel Comics. He is depicted as a human physicist who has been transformed into solid sound, and who wears a sonic emitter on his right wrist as a prosthetic device. He has often been shown in conflict with the Fantastic Four and the Avengers and is an enemy of the Black Panther and Ka-Zar.
Nasty Boys The Nasty Boys, sometimes referred to incorrectly as the Nasty Boyz, are a fictional group of supervillain mutants appearing in American comic books published by Marvel Comics. This group exists in Marvel's shared universe, known as the Marvel Universe.