Oak is the main antagonist of the cartoon "Three Heroes: Knight's Move", which also appeared in the first film of the cartoon series ("Alyosha Popovich and Tugarin the Serpent") as a minor villain. A noble player and a crook who wants to use the wealth of deceived players to gain as much power as possible, spreading his gaming influence. Oak is a gambling fraudster who wants to use the wealth of deceived players to gain as much power as possible. He always talks very politely and subtly to everyone, but this only hides his true nature. It seems eccentric at times, but in fact it has a brilliant intellect. He is quite ruthless, and showed no mercy even to animals, ordering them to skin Julius and Vasya alive. He treats his subordinate Knackers mostly kindly, and allowed them to dispose of the looted things, but, nevertheless, he did not care about them when the heroes defeated them. But he was also willing to forgive Julius and not harm him after he brought him to the Prince. The oak is ingenious and inventive, as it is the ancestor of modern gambling. In addition, he has some level of magic, because he was able to magically scatter and deal cards. It is also capable of assuming a gigantic demonic form. In this form, he possesses tremendous superhuman strength and stamina, and can use his arms as tentacles. He was able to give a decent fight to three heroes.