Kelly is Number 17
- Season 11: Stepney and the Bluebell Branchline (cameo), Around the Railyard in 64 Seconds (cameo), Station Situation, Hank and the Hatt St Crossing and BoCo and the Cocoa (cameo)
- Season 14: Millie's Castle Hassle (cameo), S.C.Ruffey's Sweet Tooth (cameo) and Flat Stanley
- Season 15: For Whom The Belle Tolls (cameo), Jock Beats the Clock, Ice Ice Daisy (cameo), The Island of Misfits Engines. (cameo)
Kelly is perhaps based on a real crane; due to him being a crane - however, the specific basis is unknown.
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