Duck is a Great Western engine.
- Gordon the Big Engine - Paint Pots and Queens (cameo)
- Four Little Engines - Old Faithful (cameo)
- Percy the Small Engine - Duck Takes Charge
- The Eight Famous Engines - Gordon Goes Foreign and The Fat Controller's Engines (cameo)
- Duck and the Diesel Engine - Domeless Engines, Pop Goes the Diesel, Dirty Work and A Close Shave
- The Little Old Engines - Rock 'n' Roll (cameo)