Kenny is, by human standards, short and stout. His stocky limbs and broad shoulders are traits one would expect to find in an accomplished fighter, but this particular fellow has chosen a more sedentary lifestyle, as shown by his chubby physique.
That distinctive heaviness may account for his usual choice of dress. Kenny favors robes with loose waistlines. He'll opt for darker colors given the choice - whether that's an attempt at looking slimmer, a statement about his priestly philosophy, or an effort to hide stains is anyone's guess.
The iconic follower of the Holy Light radiates benevolence and serenity at all times. Kenny lacks the wisdom or worldliness to accomplish this, but at minimum he's a pretty friendly guy. If anything, he seems to take pride in his ability to remain smiling and calm even when others aren't inclined to do the same. He's still a bit of a kid, though, and with that comes the usual desire to seek approval from those around him.
For now, Kenny's strongest talents lie in the culinary realm. He's especially fond of baking. Thanks to his more mobile adventurer lifestyle, he's now exploring some of the "improvisational" cooking styles that don't require access to a proper kitchen. His priestly studies have been split pretty evenly between spells that heal and spells that harm. According to the teachings of his mentor, the moral quality of a spell is determined by intention, not effect.
Kenny's father runs a small bakery in Stormwind. (It's okay if you've never heard of it - according to Kenny, all the goods are overpriced.) Though he loved baking, the business end wasn't to the boy's tastes. Any talk of him eventually inheriting his father's business tended to end in argument.
Since he wouldn't continue the family tradition, Kenny was gently encouraged to pursue something "acceptable" for his life's work. The priesthood seemed to fit the bill. It's now been four years since he began intensive study in Redridge. After those years of more or less living under a rock, he's out in the world seeking adventure, life lessons and other such things..