Ever since Luke met Peter Sam, he thought he was a bad influence, and the others are great friends; even the diesels like Peter Sam!
- Season 2: Mists of Misty Island, Luke vs. Peter Sam and Blue Mountain Weirdness
- Thomas' Blue Mountain Mystery (first appearence)
Luke thinks Peter Sam has an IQ of 48, but not the others! They all think he has an IQ of 300.