Ulysses Klaw is a villain who appears in the Marvel Comics animated series The Avengers: Earth's Mightiest Heroes.
Klaw was created by Stan Lee and Jack Kirby.
Role in the series
Klaw with a group of mercenaries went to Wakanda to steal the Vibranium, after killing the S.H.I.E.L.D. agents, Klaw, and his men take the Vibranium but Hank using his powers manages to defeat the mercenaries and Klaw, Klaw runs away scared when is defeated by Ant-Man.
Later, Klaw hires Whirlwind to steal a sonic disruptor, which he replaced his right hand with it. Klaw later helps Man-Ape to take control of Wakanda so as have the Vibranium when he wants.
The Grim Reaper soon decided Klaw had outlived his usefulness and attacked him. The overcharged Vibranium turned Klaw into a living sound creature. Iron Man and Ant-Man stopped Klaw by containing his sound emitter (that had become the "heart" of the creature) inside a hollow Vibranium spike.