William "Junior" Campbell (born in Glasgow, Scotland on 31 May 1947) is a Scottish composer, singer-songwriter and musician. He was the co-composer for Thomas the Tank Engine & Friends with Mike O'Donnell, from its debut in 1984 until 2003, and TUGS. He was also a founder member, lead guitarist, piano player and singer the Scottish band "Marmalade", formerly "Dean Ford and the Gaylords", from 1961 to 1971.
Junior Campbell has 54 screen credits in a career dating back to 1983. Signature works include Thomas and the Magic Railroad, 1983, Down the Mine. Explore the interactive character relationship maps on each title page to trace how their roles connect across franchises.
