Nia's Bright Idea is an upcoming episode of the twenty-fourth series.


Nia uses what she learns about lighthouses to suggest covering a big wheel in Christmas lights, so that Harold can see where he's going in a storm.


Main Cast

Additional Cast


  • Island of Sodor
    • Tidmouth Sheds
    • Arlesburgh Harbour
    • Ulfstead Castle
    • Wellsworth
    • Knapford
    • Sodor Animal Park
    • Vicarstown Bridge (mentioned)
  • The Mainland
    • The First Mainland Station




  • Joseph May as Thomas
  • Kerry Shale as Gordon
  • Rob Rackstraw as James
  • Christopher Ragland as Percy
  • Jules de Jongh as Emily
  • Yvonne Grundy as Nia
  • Rachael Louise Miller as Rebecca
  • Teresa Gallagher as Annie and Clarabel
  • Keith Wickham as Glynn, Harold, Sir Topham Hatt and Mr. Percival
  • Jamie Campbell Bower as Skiff
  • Mike Grady as Sir Robert Norramby
  • Bob Golding as Stephen (uncredited)
  • Miranda Raison as Millie (uncredited)


  • Apart from cheering, Stephen, Glynn and Millie have no dialogue in this episode.
  • The way Harold arrives at the castle and Sir Topham Hatt steps out dressed as Father Christmas is similar to the second series episode, Thomas and the Missing Christmas Tree.
    • Some shots of them resemble the same scenes from the episode and the story the episode is based on.
    • The scene could possibly be an inside reference to the fact that one of Sir Topham Hatt’s models was used for Father Christmas in that episode as well.
  • When Harold spots the Ferris Wheel, an instrumental version of Joy to the World is heard
  • Harold’s line, “It’s going to be a bumpy ride,” is a line famously used in the 1950 film, All About Eve.
  • This episode marks Emily, Nia, Stephen, Glynn, Millie, Skiff, Harold, Sir Robert Norramby and Mr. Percival's last appearances in the Jam Filled Toronto series.


  • When Nia leaves Tidmouth Sheds, her side rods are not rendered properly as part of them are disconnected from her piston and are hanging loose.
  • Several characters and cast members were not credited in the UK and US end credits:
    • Bob Golding is not credited for voicing Stephen.
    • Miranda Raison is not credited for voicing Millie.
    • Glynn is not listed with Keith Wickham's characters.
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