The King of Ventrexia was the ruler of Ventrexia and Little Cato's biological father.

He was the ruler of the planet before his death, along with his wife, at avocato's hands (under lord comander orders). They had one son as far, Little Cato, before Avocato became his father. Nothing is known about his personality, his age, or his background, although it can be assumed he does love his son very much as well as his wife and trusted Avocato before his death.