Bear, formely D7101, iiiis is one of the Railway Series characters that never made into the TV Adaption, Thomas the Tank Engine & Friends. He is a loyal and friendly Diesel that loves Steam Engines. He is always willing to help and make friends on the railway.
7101 came on loan to Sodor with another diesel called D199, who was blatantly rude and arrogant and bad-mouthed the steam engines until 7101 and Duck shut him up. 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 pursuaded Sir Topham Hatt to let 7101 stay on, which he agreed to, and renamed him Bear because of the growling sounds his engine usually makes.
Bear is based off of the BR Class 35 "Hymek" Bo-Bo.