Farhog was born over a thousand years ago, somewhere in Scandinavia. About a thousand years ago he attacked Kinkow, planning to take over it. However, he failed and perished.
Some how over the centuries he came into the possession of June. When Brady went with Lanny to by a ghost to prove to Boomer they existed, Lanny tricked him into buying the Viking ghost, who attacked him and Boomer. He possessed Boomer after learning he was the king.
Brady went back in and talked to him, at first unaware of the event. He was quickly scared off. Mason led the guards in to try and depose him, only for him to prove too powerful. He enslaved them and Lanny, who realised he was out of his depth. Brady went back to the June, who sold him an anti-ghost suit, a spell to defeat him and a can to recapture the ghost.
Brady lured him out of The Castle. Farhog attacked, only for the suit to repel him. Brady tried to read the spell, but he telekinetically flung it away. Brady then managed to convince him to leave Boomer's body by making a challenge: If he left Boomer, he would take off his magic suit. Farhog complied and attacked Brady. Brady was able to hold him off, and finally defeat him, when he dodged his axe and grabbed the can, imprisoning him once more and freeing the kingdom.
Farhog was shown to be ruthless, cruel, barbaric, greedy and fearsome. He strived to conquer Kinkow, and would kill anyone who stood in his path. He was also shown to be quite arrogant.