Flynn is a Red Fire Engine who can run on Both Road and Rails, He works for The Search and Rescue Center.
Flynn is a 1964 Oshkosh W800 4X4 Aircraft Rescue Fire Engine.
Flynn is Painted Red with Yellow Lining, with The Sodor Search and Rescue Center emblem on his Cab Doors in White.
- Season 13: Duck and the Quack Attack (cameo; not named), It's Good To Be Belle, The Duke of Hazard (cameo), Who Stole The Coal?, Sideplates and Skirmishes (cameo)
- Season 14: Quarry Quest (cameo), Hiro and the Heat Wave, Flat Stanley
- Season 15: Roundhouse Roulette (does not speak), Nightmare on Sodor The Crosby Coalition (cameo) Ice Ice Daisy (cameo), The Island of Misfits Engines (cameo), A Christmas Caroline
- Season 16: Bulstrode Barges In (cameo), Henry's Hill, Bad News Bear (does not speak), Bowler Strikes Again, Paxman Pulls Through (mentioned), Ace in the Hole, Finding Lorry
- Season 17: Dustin the Really Useless Engine (cameo), Big Trouble on the Little Western (cameo), James and the Giant Screech (cameo), Toby, Or Not Toby (cameo), Thomas' Crown Affair (cameo), Rocked by a Hurricane, Para-Norman Activity (cameo)
- Flynn is the seventh item to not have black chassis the first six being Terence, the Sodor Railway Repair, Thumper, Fergus, Rocky, and Byron with the eighth being Stephen's Coaches.