Professor Drake Utonium is a main character in The Powerpuff Girls Z, and is based on the character of the same name in the original cartoon, The Powerpuff Girls. Though he is not the father of the Powerpuff Girls Z, he has a son, Ken. His wife, despite making an appearance in the show, is an astronaut, and her name is unknown. 

Professor Utonium is a researcher and inventor at the international Science Laboratory in Tokyo City. He is gentle and kind hearted father figure, but since he doesn’t get out much, he has somewhat of a twisted view of the world and sometimes lacks in common sense.