Rheneas is the second engine on the Narrow Gauge Railway. He was built by Fletcher, Jennings, and Co. He first arrived on Sodor in 1866, and soon became fast friends with Skarloey. He is a happy and cheerful engine, but because of his age, he often breaks down. Even so, he is well respected by the other engines and workers. He is also known for is bravery, as he once managed to pull a full train home one day despite having a jammed valve gear (which was rewarded with an overhaul).