At the age of seven, Maguire played one of the many children in the "
Every Sperm is Sacred" musical number in the 1983 film ''
Monty Python's The Meaning of Life''. In 1991, he played Simon in the BBC children's drama
Dodgem. In 1993, Maguire joined the cast of the British soap opera
EastEnders playing
Aidan Brosnan, a young Irish
footballer playing for fictional side Walford F.C. In 1994, he left the show to take a starring role in the BBC drama series
Dangerfield, playing Marty Dangerfield. He has also appeared in
Holby City and
Sunburn. Maguire then pursued a career in music, releasing three albums: his self-titled debut album in 1994,
Spirit in 1996, and
Greatest Hits in 1998. Maguire's biggest hit was
Good Day, which reached number 12 in May 1996. During this time, Maguire appeared on the Childliners record
The Gift of Christmas with acts such as the
Backstreet Boys,
E.Y.C.,
MN8,
Deuce,
Ultimate Kaos,
Let Loose,
East 17,
Peter Andre,
Michelle Gayle,
Dannii Minogue and many more. Maguire announced his retirement from the music industry during his final performance at
Maesteg Town Hall, part of his Chick N Bay 9T5 4EVA tour. Emotional scenes were witnessed in the audience as Sean launched into his final song, "Gone and Long Forgotten". Maguire has branched out into films: in the early 1990s, he appeared in
Waterland opposite
Ethan Hawke and
Jeremy Irons. In 2001, Maguire played the title role in the TV-film
Prince Charming opposite
Bernadette Peters,
Christina Applegate and
Billy Connolly – with
Martin Short as his assistant, Rodney. In 2005, he also made
The Third Wish – which co-starred actors
Jenna Mattison,
Armand Assante,
Betty White and
James Avery. Maguire also appeared as Euan in the defunct
WB Network sitcom
Off Centre with
Eddie Kaye Thomas and
Jason George. Maguire (alongside Jason George once again) played one of the main characters, Donovan Brink, on the television series
Eve. He starred in the CBS sitcom
The Class, playing gay character Kyle Lendo, but the show was cancelled in May 2007. He completed filming in 2006–2007 for an American comedy film
LA Blues playing a character called Jack Davis. Maguire's film
Meet the Spartans went to No. 1 in the US box office chart in 2008, and he starred in
Mr Eleven on ITV1 in autumn 2008. Maguire also signed on to a guest spot in
Cupid for
ABC portraying an Irish musician. Maguire played the lead role in
Kröd Mändoon and the Flaming Sword of Fire, a comedy fantasy series in which he plays a "sensitive, but clueless freedom fighter". The show premiered in the United States on
Comedy Central on 9 April 2009, in Canada on
Citytv on 8 June, and in the United Kingdom on
BBC Two on 11 June. In the third season of ABC's
Once Upon a Time, Maguire joined the show as Robin Hood, taking over the role from
Tom Ellis. After recurring for two seasons, he was promoted to a series regular in June 2015, right before the start of the show's fifth season. In 2023, Maguire appeared in the
sixth season of CBS's
S.W.A.T alongside
Shemar Moore, playing Joe. ==Personal life==