Donnie is a Tank Engine like Thomas but is grey. He is kind hearted and nice. He is also Friends to Thomas and Percy. He is Thomas' Cousin. He is also number 1. Donnie at the Docks Retrieved from "https://tttefanfic.fandom.com/wiki/Donnie?oldid=71226" Categories: Fan made pages Fan Made Characters Characters Silver Characters Ocs 0-6-0 Tank Engines LB&SCR Standard Gauge Community content is available under CC-BY-SA unless otherwise noted.