Bear, so named for the growling noises he makes, is a green Diesel engine.
At this time, Bear was known by his number, 7101.
The next day, 7101's injector failed while pulling the "Limited". Henry, who was already towing 199 and had failed himself while pulling some oil tankers, came to help; 7101 was still able to move by himself with some help from Henry. To the passengers' delight, Flying Scotsman took their train, while Henry helped 7101 home.
The engines persuaded Sir Topham Hatt to let 7101 stay on, and renamed him "Bear". Bear liked this name, saying it meant he "really belonged".
James and the Diesel Engines
James had befriended Bear by this time.
Gordon the High-Speed Engine
It was revealed Bear pulls the Express when Gordon, Henry and James are busy.
Henry and the Express
Bear did Henry's duties while Henry was at the Works.
Bear is loyal and friendly - even James, who was the last to accept Diesels, couldn't help but like him.
Bear is based on a BR Class 35 "Hymek" Bo-Bo. His initial number, 7101, is an in-joke: the Class 35 was only numbered up to 7100.
Bear is currently painted in the livery he should have carried when first built: all-over B.R. loco green with a narrow band of lime along the bottom of the sides with cream window surrounds and yellow warning panels. When he first arrived on Sodor, he wore the B.R. "Rail Blue" livery with yellow warning panels.