[citation needed] Fraser has performed in a number of West End productions and played Gareth in the Doctor Who episode "Army of Ghosts" (2006).

On 23 June 2011, Fraser returned to the West End production of Les Misérables, this time to play the role of Javert.

[4] On 1 and 2 October 2011, Fraser played Raoul in the 25th anniversary staging of The Phantom of the Opera at the Royal Albert Hall in London.

In December 2014, he returned to the Donmar Warehouse to play Stine in City of Angels, alongside his wife Rosalie Craig as Gabby/Bobbi and Samantha Barks as Mallory/Avril.

He was the co-lyricist and co-book writer (with Josie Rourke) for the verbatim musical Committee... (full title The Public Administration and Constitutional Affairs Committee Takes Oral Evidence on Whitehall's Relationship with Kids Company) with music by Tom Deering, which premiered at the Donmar Warehouse from 23 June to 12 August 2017.

[8] On 4 June 2024, it was announced that Dirty Rotten Scoundrels would return to the West End for a concert run at the London Palladium on 24 November 2024, marking 20 years since the show premiered.