Lucky Luke: Marcel Dalton (Lucky Luke #72)

Marcel Dalton is the Dalton Brothers' Swiss uncle. He is not only honest, but a banker to boot. Having purchased a small bank in the US, he decides to hire his nephews to force them to make a honest living. Although he's assisted by Lucky Luke, they have their work cut out for them. Especially since, as if the ingrained instincts of the four dumbest bandits in the West weren't enough, there's also the small matter of the competition: a very unscrupulous banker!