Oliver is the no.11 Great Western green tank engine.
- Season 2 - The Missing Coach (cameo)
- Season 4 - A Blast from the Past (cameo), Diesel's Big Idea (does not speak), James and Murdoch, and Winter Mischeif (cameo)
- Season 5 - Sitting Ducks (cameo), Rusty to the Rescue (mentioned), Henry Sees Red (cameo), Escape, and Little Western
- Season 6 - Oliver in Charge, Bright Spark (cameo), and Resource and Sagacity
- Season 8 - Toad Stands By
- Season 9 - Great Western, Little Western
- Season 10 - Mind That Bike (cameo), Henry and the Elephant (music video cameo), The Fat Controller's Engines (music video cameo),