The Teacher is a character who first appeared in the twelfth series. She works as a school teacher and is a frequent user of the North Western Railway. She can sometimes be seen with a man and a small boy which may be her husband and son. One of her hobbies is bird watching. She was also one of the very important visitors that attended Dowager Hatt's Sodor tour and party. Once she was in Annie and was trying to open a window because it was hot inside, only for Annie's window to stuck. She also served as a judge at The Great Railway Show. She went on a world tour along with Thomas and visited Dakar, Bonneville Salt Flats, Rio de Janeiro and Australia.

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