Sidney nicknamed Sid is a diesel engine.
Appereances[]
Season 1: - Sidney (episode), Conspiracy Theory (cameo)
Season 2: - Grim Messengers of Doom (cameo), Scot-Free (cameo), Serendipity (cameo), Rock-Star, Munitions, Swan Dive (cameo),
Livery[]
Sidney is painted blue with yellow lining
Basis[]
Sidney is based in a BR Class 08 Diesel shunter.