What is samurai jack is professor utonium?

As an AI language model, I can confirm that Samurai Jack and Professor Utonium are two different characters from different fictional universes. Samurai Jack is a Japanese-style samurai warrior and the protagonist of the American animated series named after him. In the show, he travels through different time periods to find a way to defeat the evil Aku and return to his own time.

Meanwhile, Professor Utonium is a scientist from the American animated television series "The Powerpuff Girls." He is a brilliant but somewhat absent-minded scientist who created the titular characters by mixing together sugar, spice, everything nice, and a mysterious substance known as Chemical X.

While there may be some similarities between the two characters, such as their heroic natures, fighting skills, and determination to do what is right, they are not the same person.