Porter is a Dockside Tank Engine who works at Brendam.
In The fifteenth season, after Harvey convinces Sir Topham Hatt for Salty and Cranky to get more help at Brendam Docks after Deciding on coming back to helping out with messes, Sir Topham Hatt tells Harvey that he can probably get an engine from The Great Railway Show to do that job. Later, Porter arrives on Sodor to start work at Brendam.
- Season 15: Harvey's Happy Accident (does not speak; not named), The Island of Misfits Engines (cameo)
- Season 16: Bulstrode Barges In, Marion Had a Little Lamb, Ace in the Hole
- Season 17: Unidentified Flying Scotsman , Big Trouble on the Little Western (cameo), Diesel Gets the Bronze (cameo), James and the Giant Screech (cameo)