Ulysses Klaue was a man interested on the rare metal Vibranium, only found in the African country Wakanda. during a fight against Black Panther and the Fantastic Four, Klaw fell on one of his own sound-based weapons and became a being of pure sound, able to create sound constructs with sonic "claws" he has instead of hands.
Klaw was a member of Ultron's Masters of Evil, and briefly became their leader after Ultron's first demise. He has also served in the team under other leaders.
Marvel Cinematic Universe
Ulysses Klaw is a black-market arms dealer as well as smuggler and gangster who had operated out of South Africa. He is a former acquaintance of Tony Stark from his weapons-dealing days. During an encounter with Ultron, Klaw sold his stockpile of Vibranium to the A.I. before losing his arm in an argument with Ultron.
- In the Marvel Cinematic Universe, Klaue was portrayed by Andy Serkis whose best known for his work in The Lord of the Rings and The Hobbit films as Gollum, and the uncredited voice of the Ringwraith in The Lord of the Rings: The Fellowship of the Ring and the Witch-King in The Lord of the Rings: The Return of the King in addition to portraying Supreme Leader Snoke in the Star Wars films.
- In Maximum Overload, Klaw only appeared briefly in a screenshot with Wizard and Trapster.
- Klaw was changed drastically in the MCU, as he has gone from being a supervillain to an arms dealer. He still has the device attached to his arm that allows him to fire sonic waves.
- Maximum Overload (cameo)