Despite his cheery appearance, Kaldo is ruthless and cunning. He will challenge people to a "game" in order to test them and uses his job to make people comply. Kaldo does show a chivalrous side, protecting Lemon Irvine from harm, as well as reviving Mash Burnedead from the brink of death with help. He also has a sweet tooth, particularly for syrup and honey, his liking of honey and syrup is to a frightening degree, as he puts it on everything, which other people consider disgusting.