He is most famous for being the narrator for the children's television show Thomas & Friends from the seventeenth to twenty-first seasons, and his roles as Greg Shadwick in Brookside, Ray Wyatt in Dream Team, Owen Davies in Holby City and Adrian Atkins in Coronation Street.
Moraghan may be best known for his acting, but he also sings and in 2006 he starred in a musical production of Willy Russell's "Our Day Out" at Liverpool's Royal Court Theatre.
[6] In 2008, Moraghan appeared in Celebrity MasterChef, reaching the final alongside Andi Peters and eventual champion Liz McClarnon.
On 9 April 2009, it was announced that Moraghan was touring the UK in a theatre production of Brian Clemens' play Strictly Murder, alongside Nick Barclay, Katie Funk, David Rumelle and Miriam Miller.
Moraghan's swing album, Moonlight's Back in Style (words by Nicky Campbell) was released on Linn Records on 14 September 2009.