This is Number 3
Timothy is a Little Oil-Burning Blue Tank Engine, who Works at The Sodor China Clay Works with Bill, Ben and Marion.
Appearances:
- Season 14: Quarry Quest, Cabless Companions, James in a Jam (cameo)
- Season 15: Roundhouse Roulette (cameo), The Crosby Coalition (cameo),The Island of Misfits Engines (cameo)