Henry

It's unknown where Henry was during the explosion, but he was later found by Edward a few days after the explosion, at Killdane, with a new headlamp and a truck on the front of his running board, acting as a blast shield. His crew would ride in it as they went down the track and try to spot survivors. The only reason he was unmutated was due to him being full of welsh coal, as it proved to be a working vaccine for the engines to keep them from becoming mutated like Thomas. Several engines passed Henry, but they were mostly mutated, like Gordon. Later he went along with Edward and discovered Percy, but his lower jaw was dislocated and not repairable, so they left him for dead. after that, they return to Killdane, Edward leaves the day after.