Henrietta is Toby's faithful coach. She came to Sir Topham Hatt's railway with Toby after almost being turned into a hen house. She now works with Toby, although she rarely carries a full load of passengers. Henrietta is quite content with her life on the Island.
Henrietta is one of only a few named characters on the island who does not have a face. Henrietta is a low-slung tram coach.