Bill and Ben the Tank Engine Twins are characters in the television series.


  • Season 3 - Thomas We Love You
  • Season 4 - Thomas' Anthem Grand Finale, The Island Song (one only), and Really Useful Engine (one only)
  • Season 5 - Night Train, Accidents will Happen (one only), Every Cloud has a Silver Lining, It's Great to be an Engine, Sir Topham Hatt, and Come for the Ride
  • Season 6 - Little Engines, Down by the Docks, and Winter Wonderland
  • Season 7 - Troublesome Trucks and Salty
  • Season 10 - Doing it Right
  • Season 17 - Hey, Hey Thomas and On a Journey Today
  • Season 18 - The Best Friends Express
  • Calling All Engines! - Trying
  • Tale of the Brave - Let's Be Brave


  • They only appear in Calling All Engines! through a cameo in the music video, Trying.

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