Benedict Uno, also known as Father, is the main antagonist of Codename: Kids Next Door. He is one of the most powerful villains in the show, and one of the most malicious, being one of the few to actually attempt to kill members of the KND. He is the adoptive father and the boss of The Delightful Children From Down The Lane. He was later revealed to be Nigel Uno/Numbuh One's uncle.
Father was the brother of Monty Uno and son of Grandfather. Unlike his brother, Ben was too afraid to rise up against his father, and ran away. He later grew resentful of his brother overthrowing their tyrannical parent.
At some unknown point, he gained his powers and became the villain known as Father. He secretly kidnapped Sector Z and turned them into The Delightful Children From Down The Lane, adopting them as his own children, resulting in the Kids Next Door losing all contact with Sector Z, until the events of Operation: Z.E.R.O. when Numbuh One's father Monty discovered the truth and temporarily recommissioned them.
And he is reprised by Maurice LaMarche in the English dub and Tsuguo Mogami in the Japanese dub.