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.
2026Thomas & Friends: Really Helpful EnginesMovieMusic
2025The NWR Stories: 1983MovieOriginal Music Composer
2023TUGS: A Bigg RetrospectiveMovieOriginal Music Composer
2022Project Tiger Moth: "The Good Old Days"MovieOriginal Music Composer
201570 Years of FriendshipMovieMusic
2012Thomas & Friends: Engine FriendsMovieMusic
2011Thomas & Friends: My First Thomas with The Fat ControllerMovieMusic
2010Thomas & Friends: The Greatest StoriesMovieMusic
2009Thomas & Friends: Holiday ExpressMovieMusic
2008Thomas & Friends: Henry and the ElephantMovieMusic2008Thomas & Friends: Mud Glorious MudMovieMusic
2008Thomas & Friends: Percy Takes the PlungeMovieMusic
2007Thomas & Friends: Ultimate ChristmasMovieMusic2006Thomas & Friends: Thomas' Halloween AdventuresMovieMusic
2006Thomas & Friends: Thomas and the Really Brave Engines and Other AdventuresMovieMusic
2005Thomas & Friends: Percy Saves the Day and Other AdventuresMovieMusic
2005Thomas & Friends: Hooray for Thomas and Other AdventuresMovieMusic2004Thomas & Friends: The Early YearsMovieMusic2004Thomas & Friends: Thomas and the Jet Engine and Other AdventuresMovieMusic2004Thomas & Friends: New Friends for Thomas and Other AdventuresMovieMusic2003Thomas & Friends: Thomas' Snowy Surprise and Other AdventuresMovieMusic2003Thomas & Friends: Best of GordonMovieMusic2003Thomas & Friends: James and the Red Balloon and Other Thomas AdventuresMovieMusic
2003Thomas & Friends: Percy's Chocolate Crunch and Other Thomas AdventuresMovieMusic
2002Thomas & Friends: Salty's Secret and Other Thomas AdventuresMovieMusic2002Thomas & Friends: Best of JamesMovieMusic2001Thomas & Friends: Best of ThomasMovieMusic2001Thomas & Friends: Best of PercyMovieMusic
2001Thomas & Friends: Thomas' Trackside Tunes and Other Thomas AdventuresMovieMusic
2000Thomas & Friends: Make Someone Happy and Other Thomas AdventuresMovieMusic
2000Thomas and Friends: Singalong with ThomasMovieWriter
2000Thomas & Friends: Spills & ChillsMovieMusic
2000Spills and Chills & Other Thomas ThrillsMovieMusic1999Thomas & Friends: 10 Years of Thomas the Tank Engine & FriendsMovieMusic1999Thomas & Friends: Races, Rescues & RunawaysMovieMusic
1999Thomas & Friends: Races, Rescues and Runaways and Other Thomas AdventuresMovieMusic
1999Thomas & Friends: Cranky Bugs and Other Thomas StoriesMovieMusic
1998Thomas & Friends: A Big Day for ThomasMovieMusic
1998Thomas & Friends: Thomas Comes To Breakfast & Other Thomas AdventuresMovieMusic1998The Scold's BridleMovieOriginal Music Composer
1998Thomas & Friends: Thomas & His Friends Get Along & Other Thomas AdventuresMovieMusic
1998Thomas & Friends: Thomas & His Friends Get AlongMovieMusic
1997Thomas & Friends: Sing-Along & StoriesMovieMusic1996Thomas & Friends: Thomas and His Friends Help OutMovieMusic
1995Thomas & Friends: Thomas and the Special Letter and Other StoriesMovieMusic
1995Thomas & Friends: Rusty to the RescueMovieMusic1994Thomas & Friends: Percy's Ghostly Trick and Other Thomas StoriesMovieMusic
1994Thomas & Friends: James Goes Buzz Buzz and Other Thomas StoriesMovieMusic
1993Thomas & Friends: Thomas, Percy and the Dragon and Other StoriesMovieMusic
1992Thomas & Friends: Thomas Gets Bumped and Other StoriesMovieMusic
1992Thomas & Friends: Trust Thomas & Other StoriesMovieMusic
1990Thomas & Friends: James Learns a Lesson and Other StoriesMovieMusic
1990Thomas & Friends: Thomas Gets Tricked and Other StoriesMovieMusic1989TUGSTV showOriginal Music Composer · 13 episodes1989That Summer of White RosesMovieMusic
1985Thomas & Friends: Adventures of Thomas the Tank Engine & FriendsMovieMusic1984Thomas & FriendsTV showOriginal Music Composer · 182 episodes
1983Down The Mine: The Pilot EpisodeMovieMusic Arranger