Professor Utonium

Professor Utonium is the creator of the PowerPuff Girls. He Created Blisstina "Bliss" First, and then years after due to her being lost, he ended up with Blossom, Bubbles and Buttercup who have stuck with him since the Original series. They Never knew about Bliss until the 2016 series during a 5 Part Special that Introduced her to everyone. He is very proud of his little girls, and never regrets accidentally adding in chemical x (w for Bliss) that gave them their superpowers in the concoction he used when planning on originally making them regular little girls. He is known to be their dad since he did create them in that sort of way. Either Buttercup could've got her black hair from him from Genetic Elements in the Chemicals or it is merely coincidental. Even though the Girls can fight for themselves, the Professor is never fully out of it to help them on certain occasions, as shown with a few episodes and other things.