Thomas the Tank Engine is a LB&SCR 0-6-0T E2 who works on The Island of Sodor. He helped Pooh, his friends and the Fearless Four fight off their enemies from the town of Bremen, and in Pooh's Adventures of Thomas and The Magic Railroad, Pooh helped him defend the golden engine Lady from Diesel 10.
- Thomas had his first guest star in Winnie the Pooh Meets The Fearless Four
- Pooh and his friends meet Thomas again in Pooh's Adventures of Thomas and The Magic Railroad
- Thomas meet Pooh and his friends again in Pooh's Adventures of Thomas and Friends: Hero of the Rails - The Movie, Pooh's Adventures of Thomas and Friends: Misty Island Rescue - The Special, Pooh's Adventures of Thomas and Friends: Day of the Diesels - the Movie and Pooh's Adventures of Thomas and Friends: Blue Mountain Mystery - the Movie.
- Thomas, Percy and Toby than started their own adventures in Thomas the Tank Engine's Adventures of Sleeping Beauty.
- Thomas, along with his friends, Emily, Percy Toby, Duck, Donald, Douglas, Oliver and Toad had another adventure in Thomas' Adventures in Cars.
- Thomas along with James, Percy, Toby and Emily meet Aladdin and his friends in Thomas' Adventures of Aladdin.
- Thomas was than kidnapped along with Princess Odette by Lord Rothbart in Thomas the Tank Engine meets the Swan Princess.
- Thomas, All of his Sodor Friends & the ponies had helped Elmo & the Sesame Street crew in Thomas & Twilight Sparkle's Adventures in Elmopalooza
- Thomas is very close to Princess Celestia who sees him as a faithful student, due to him, Percy, and Twilight Sparkle saving Canterlot from Queen Chrysalis in Thomas' Adventures of My Little Pony Friendship is Magic - A Canterlot Wedding (Full Movie).
- Thomas is also Twilight Sparkle's boyfriend and private engine.
- Thomas and Twilight Sparkle are the leaders of the Thomas and Twilight Sparkle's Adventure Team.