The Märklin Engine was first acknowledged in the crew members' dedication page on the Sodor Island Fansite. The page featured a behind the scenes photograph of the Märklin engine from the episode Tenders and Turntables. It then appeared on screen in The Flying Kipper in the background shunting and preparing the Flying Kipper for Henry to take away. The Märklin engine also appeared in Off the Rails and was used as one of the tarped engines in Trouble in the Shed. It can also be seen in a still from Thomas' Train pulling a small goods train next to Henry at Knapford.