Ketai is a young swordsman that's mentioned in the Catherine's Charge scenario of the Armageddon's Blade campaign in Heroes of Might and Magic III: Armageddon's Blade.

During Queen Catherine's defense of Erathia's border from a kreegan invasion, the kreegans sent a lone assassin, armed with demonic magic artifacts, to kill her in her sleep. As he passed near her tent opening, the young swordsman Ketai spotted the demon and managed to capture him.

The assassin was questioned for a short time, before Catherine turned to her advisor and told him to have the demon "drawn and quartered, then put on display as a warning."