Kenny Donati is a character that is mentioned throughout the course of To All the Boys I've Loved Before and P.S. I Still Love You. He is one of the boys who received a letter, although his letter got returned to Lara Jean later on.
Kenny has medium length, messy brown hair and brown eyes. He has a mole above his lip and slightly tan skin.
Lara Jean was Kenny's friend during summer camp. She fell for him because he took care of her during her whole time at the camp. It is also stated that she would have gone back home right away if it wouldn't have been for him. The moment that she realized that she had fallen for him was when a kid was drowning in a sea and he rescued them before a lifeguard could. At the end of camp, they played a game and eventually Kenny had to choose a girl to kiss but disappointed Lara Jean when choosing another girl over her. Lara Jean never saw him again after the end of summer.
Although his letter got send out, he never actually received it as it was returned to the sender during the course of To All the Boys I've Loved Before, implying that he moved.