|This article is about the Buzz Book adaptation. You may be looking for the episode.|
Duke is found after many years by a group of explorers.
- Peter Sam
- Sir Handel
- Sir Topham Hatt (does not speak)
- Henry (cameo)
- Gordon (cameo)
- James (cameo)
- Skarloey (cameo)
- Smudger (indirectly mentioned)
- Other Mid Sodor Railway Engines (indirectly mentioned)
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