Kenneth "Kenny" Keith is a kid on the Red Socks team in The Last Straw. He, Greg, and Erick get into Mr. Litch's car. Kenny and Erick take the backseat, while Greg sits in the front passenger seat. Meanwhile, Mr. Litch was sitting on the hood of the car, talking with Mr. Boone. Kenny laid on the horn and jumped back into his seat to make it look like Greg honked the horn. He and Erick were mad that they got home late, and blamed Greg. In the online version, he is also the counterpart of Leon Ricket during detention. He is Mr. Keith (online version of Mr. Litch) 's son, and he is also on the Red Socks team. It was mentioned in online version that in the yearbook that he won Most Athletic.
- He is much more violent in the Online book than the main book when Greg he dragged his leg while Greg holding on the other side of the river causing Greg's upper body to be wet.
- In the Online version he got a 2 weeks detention.
- Though in the book The Last Straw, Leon Ricket only got a 1 day extra detention.
- This was probably changed because it wouldn't make sense for someone to get 2 weeks of detention for hitting someone.