Career
In addition to acting, Mullen is also a voice-over artist, voicing many adverts that are heard on Irish radio. He also provides the voice of the speaking clock in Ireland. In 2007, Mullen began playing the role of Chrissie Williams" abusive boyfriend Stuart McElroy in the British Broadcasting Corporation medical drama Holby City.
Mullen left Holby City in 2008 as his character was arrested and taken away by the police.
Deception- (Irish television series) (2013)- Jack French
Swansong: Story of Occi Byrne (2009) Brother Cornelius
Silent Witness (2008) Doctorate I Michael McKenzie
Holby City (2007–2008) Stuart McElroy
School Run (2008) David Brennan
The Whistleblowers (2007) Thomas Breitner
Anner House (2007) Nicky Nolan
Rough Diamond (2007) Aidan Doherty
The Tiger"s Tail (2006) Military Cross
Proof (2005) J.P O"Farrell
Murder Prevention (2004) DCI Patrick Goddard
Island at War (2004) Leuatnant Walker
Ultimate Force (2003) Omega
The Honeymooners (2003) Peter
Heartbeat (2002) Kieron Doyle
Puckoon (2002) Shamus
Helen West (2002) Chief Superintendent Bailey
Armadillo (2001) Bram
Silent Grace (2001) Cunningham
North Square (2000) Gary Booth
Saltwater (2000) Ray
Badger (2000) Ralph Allen
Ordinary Decent Criminal McHale
Shergar (1999) Hennity
Blessed Fruit (1999)
Reckless: The Movie (1998) John McGinley
The Bill (1998) Friar Colley
Soldier Soldier (1997) Central Saint Martins Alan FitZpatrick
Reckless (1997) John McGinley
Chef! (1996) First Couple
Space Truckers (1996) Cop #1
Giving Tongue (1996) Journalist
Boys and Men (1996)
Life After Life (1995) Andrew Martin
Ailsa (1994) Emperor
The Apiarist"s Dream of World Domination (1992)
Dick Francis: Twice Shy (1989) Liam Fitzgerald.
