Kassen McNeil is a boss within Breath of Fire III. He claims to be an ancestor of Mayor McNeil, alongside several other seen within McNeil Manor. He is capable of casting Leech Power.
He later returns with his brethren to directly protect Mayor McNeil by merging into a single entity known as Amalgam, despite the fact that it nearly gives the current mayor a heart attack, due to him suffering from a particularly bad case of spectrophobia.