Den

Den is a diesel that runs the Dieselworks with Dart.

Bio
Den and Dart were purchased by Sir Topham Hatt to martial supplies at the Vicarstown Dieselworks. Once, he, Dart, and Diesel were asked by Dowager Hatt to find a christmas tree. Thomas turned it into a competition by saying that they should a christmas tree for the Steamworks. They found the perfect trees on Misty Island, but they ended up being squashed. Thomas soon brought them a new tree and the engines decorated it.

Thomas later had Den and Dart fix Ol' Wheezy. At first, he had Dart try to fix him alone, but he couldn't. He then had Den try to Ol' Wheezy alone, but he couldn't either. Then Thomas realized that they both must work together to fix him. This time, both engines came and did manage to fix him. When Gordon damaged his bufferbeam, Den and Dart offered to fix his and give him a temporary one. At first, he wouldn't do it, but after Mavis and Salty told him it wasn't safe to go without a bufferbeam, he gave in. He was espacially upset when it turned out to be a diesel bufferbeam. Later, he turned liking it, but was happy when Den and Dart fixed his old one.

When Salty needed repairs, he told them that he was worried that if Porter did his work better, Sir Topham Hatt would send back to work at Anopha Quarry. This caused them to worry for him.

Voice Actor

 * Someone who sounds like Keith Wickham.