Rosie's Terrible Mistake is the sixteenth episode of the sixteenth season.


  • Thomas
  • Toby
  • Bill and Ben
  • Rosie
  • Bash and Dash
  • Ferdinand
  • Norman
  • Paxton
  • Sidney
  • Sir Topham Hatt
  • Mavis (cameo)
  • Henrietta (cameo)
  • Rocky (cameo)
  • Harold (cameo)
  • Captain (cameo)
  • Cranky (cameo)
  • The Knapford Stationmaster (cameo)
  • Farmer McColl (mentioned)

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