Norman, a.k.a Norm, is Dennis' twin brother. He is a red diesel engine with a unibrow. Norman is an engine who breaks down a lot. If he was fixed properly he would be able to show how useful he is. He has never spoken in the series.
- Throughout all his appearances it seems that Norman usually hangs out at the Sodor Dieselworks in Vicarstown.
- Because of Norman's appearance in the series, it could be possible that Dennis may end up making a reappearance later on.