I don't think Roald should be a jock. He always talks about his muscles and ripped abs but he's probably the roundest villager in the series and I love him for that xD. He might be better suited as a lazy villager.
Ken would be the scariest cranky ever. I do quite like him as smug though, it makes him seem dark and mysterious lol. Like his personality is an evil trick to get your guard down.