Byron is a Bulldozer with a large blade. He is a member of The Sodor Construction Company.
It is unknown what Byron is based on. But He does resemble a KUDAT SD6G Bulldozer.
- Season 7: Toby's Adventure
- Season 8: A Challenge for the Controller
- Season 10: Lorry's New Flatbed
- Season 12: Greetings, Montague! (not named; does not speak) and Percy Gets a Promotion
- Season 13: The Duke of Hazard (cameo), Oliver's Fossil Fright, Who Stole The Coal? (cameo), Sideplates and Skirmishes (cameo) and Hector and Logan's Hot Pursuit
- Season 14: Millie's Castle Hassle (cameo), Cabless Companions (cameo) and Furious George (cameo)
- Season 15: Flash Gordon (cameo), The Maron Station Makeover (cameo), For Whom The Belle Tolls (cameo), The Island of Misfits Engines (cameo)
- Season 16: Sweet Sixteen (cameo)
- Season 17: Wellsworth the Wait (cameo), Big Trouble on the Little Western (cameo), Oliver Confusion (cameo), Toby, Or Not Toby (cameo) and Para-Norman Activity (cameo)
- Season 18: Patrick Cements His Legacy (cameo)
- Byron is the fifth item to not have black chassis. The first four being Terence, Sodor Railway Repair, Fergus, and Rocky, and Stephen's Coaches being the sixth.