Merlin is an upcoming character who will be introduced in Journey Beyond Sodor.
Merlin is based on the Southern Railway "King Arthur" class. Like Merlin, the real No. 783 (called Sir Gillemere) was fitted with three stovepipe chimneys as a wartime experiment. The way the smoke was spread out was meant to make the trains less visible to bombers overhead.
- Thomas and Friends Adventures (coming soon)