Aubrey and Aiden are Shane's pair of coaches. Thomas meets and works with them during his time in Australia.
These two are sensible with a sense of humour, finding British and American accents to be amusing.
Aubrey and Aiden are based on Pullman First Class Parlour Cars. One such carriage, "Topaz" of 1914, is preserved at the National Railway Museum. Their CGI models are reused from Spencer's Coaches.
Aubrey and Aiden are painted teal green and brown with gold lining, golden yellow roofs and silver window frames.
- Aiden is the second character to be voiced by an episode writer, with the first being Lady, who was voiced by Britt Allcroft.
* RWS only | ** T&F only | ✦ Changed location