Thomas is a tank engine who has six small wheels, a short stumpy funnel, a short stumpy boiler, and a short stumpy dome that Bowser Junior has a strong affection for. Bowser Junior has been consistently seen with a Thomas from the Thomas & Friends Wooden Railway toyline. He is a recurring character in the SuperMarioLogan series.
Thomas is a toy tank engine that belongs to Bowser Junior, which is Junior's favorite toy and does not allow anyone else to play with when playing trains. He is always Thomas and makes whoever playing trains with him be Salty. (Which Junior calls him "The Ugly Red One")
- Thomas has spoken three times, in Bowser Junior's 6th Birthday where he says "Today is your birthday Junior!" and Bowser Junior's Breakfast, where he says "I touch you while you sleep." and "Hungry for yo mom's (censored).
- It's unknown if Logan will replace the 1999 and 2013 models with the new 2019 model, but it is still left unknown.
- It's possible that as of Cody Gets Expelled!, his 1999 model will be used rather than his 2013 model.
- Alongside the Picture from Bowser Junior Goes To The Fair!, Thomas survived the house fire in Bowser's House Fire!, because Junior ran and took him as quick as possible. He later gets burned by Brooklyn T. Guy in Bowser Junior Goes To Military School! Part 2.
- However, later after Bowser Junior Goes To Military School! Part 2, after Bowser and Bowser Junior have a heartfelt talk about their relationship, Thomas returned in The New House, it's possible it came with it, due to the house already having a lot of things.
- Along with Ken, Thomas is an inanimate object character.