Duck Saves The Day is the 6th episode of the 8th season of Duck the Great Western Engine and Friends.
- Duck as Thomas
- Mallard (from RWS) as James
- Flynn as Harvey
- Annie and Clarabel as Themselves
- Jem Cole as Sir Topham Hatt
- Green Arrow (from RWS) as Edward (does not speak)
- City of Truro as Toby (does not speak)
- The Big City Engine (from RWS) as Gordon (cameo)
- Flying Scotsman as Henry (deleted scene)
- Duck: I can't go around the difficult bend. I'm not a really useful engine without Annie and Clarabel.
- Flynn: You are a really useful engine and a jolly good friend.