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Hi, I’m Isaac. A Musical Director, Conductor and Pianist based in London.

S C R O L L

  • ‘Isaac led the orchestra and cast of players with a sure baton and achingly beautiful musicality. What a treat to be able to sit back and truly enjoy our journey back to Eastwick.’

    — Dana P. Rowe, Composer Witches of Eastwick —

  • ‘The whole score receives the royal treatment in the capable hands of music director Isaac McCullough’

    — A Younger Theatre —

  • ...the pianist and musical director Isaac McCullough works wonders...

    — The Times —

  • ‘The total twelve cast members accompanied by a small but powerful band (brilliantly led by Isaac McCullough) fill the theatre with beautiful harmonies and create a sound worthy of a West End stage.’

    — London Theatre —

  • ‘The band, under Isaac McCullough lend them superb accompaniment.‘

    — London Theatre —

 

Conducting Old Friends at the Gielgud Theatre, London.
Cameron Mackintosh Production staring Bernadette Peters and Lea Salonga

 

Recent Credits

 

The Artist
Theatre Royal Plymouth

Musical Director
Director: Drew McOnie

★★★★★ - The Telegraph
★★★★★ - The Stage
★★★★ - The Guardian
★★★★ - The Times

Stephen Sondheim’s Old Friends
Gielgud Theatre

Associate Musical Director
Director: Sir Matthew Bourne

★★★★★ - London Theatre
★★★★★ - The Telegraph

The Witches of Eastwick
Sondheim Theatre

Musical Supervisor/Conductor
Directors: Maria Friedman

★★★★★ - fintothewoods

Mary Poppins
Prince Edward Theatre

Assistant Musical Director
Director: Sir Richard Eyre

★★★★★ - The Guardian
★★★★★ - The Telegraph

Miss Saigon
UK and International Tour

Assistant Musical Director
Director: Laurence Connor

★★★★★ - Broadway World
★★★★★ - The Reviews Hub

Working: A Musical
Southwark Playhouse

Musical Director
Director: Luke Shepherd

★★★★★ - London Theatre 1
★★★★★ - Jonathan Baz
★★★★ - British Theatre

 

About Isaac

Isaac is a passionate, experienced, and ambitious Musical Director with a dynamic career in Musical Theatre, both in the UK and internationally. His dedication to elevating Musical Theatre to its highest standards is evident in every project he undertakes.