Robert "Bob" Gauld-Galliers was the art director for Thomas the Tank Engine and Friends and TUGS. He, Steve Asquith, David Eves and Nigel Permane hold the record for working longest on the show, with a total of 24 years. He began working on the show in 1984 and left in 2008 after the twelfth season when production was moved to Nitrogen Studios.
He was also one of the original production designers for "Magic Adventures of Mumfie".
Robert is also a pilot, which David Mitton found a great advantage when it came to painting the skies for the sets in the series. He is a big aeroplane fan and has a passion for World War I aircraft.
- He, Britt Allcroft and Patrick Breen all worked on "Magic Adventures of Mumfie".
- He, Martin Sherman, David Mitton and Philip Reeves all worked on Mitton's unfinished project; "Adventures on Orsum Island."