Gender
Male
Arranger Musical Director Conductor Musician
Also Known As
John O'Neill
  • CREDITS
    The Pirates of Penzance (Apr 24, 2025 - Jun 22, 2025)
    • Dance arrangements by John O'Neill
    MusicalComedyOperettaRevival
    Harmony (Nov 13, 2023 - Feb 04, 2024)
    • Musical Director: John O'Neill
    • Conducted by John O'Neill
    • Vocal arrangements by John O'Neill
    • Keyboard: John O'Neill
    MusicalOriginal
    A Chorus Line (Oct 05, 2006 - Aug 17, 2008)
    • Assistant Conducted by John O'Neill
      • Replacement
    • Keyboard 2: John O'Neill
      • Replacement
    MusicalDramaRevival
    Cabaret (Mar 19, 1998 - Jan 04, 2004)
    • Associate Conducted by John O'Neill
      • Replacement
    MusicalDramaRevival
    West Side Story (Sep 30, 2010 - Jun 10, 2012)
    • Musical Director: John O'Neill
    • Conducted by John O'Neill
    MusicalDramaRevival
    A Chorus Line (May 04, 2008 - Jun 13, 2010)
    • Musical Director: John C. O'Neill
    • Conducted by John C. O'Neill
    MusicalDramaRevival
The Pirates of Penzance (Apr 24, 2025 - Jun 22, 2025)
  • Dance arrangements by John O'Neill
MusicalComedyOperettaRevival
Harmony (Nov 13, 2023 - Feb 04, 2024)
  • Musical Director: John O'Neill
  • Conducted by John O'Neill
  • Vocal arrangements by John O'Neill
  • Keyboard: John O'Neill
MusicalOriginal
A Chorus Line (Oct 05, 2006 - Aug 17, 2008)
  • Assistant Conducted by John O'Neill
    • Replacement
  • Keyboard 2: John O'Neill
    • Replacement
MusicalDramaRevival
Cabaret (Mar 19, 1998 - Jan 04, 2004)
  • Associate Conducted by John O'Neill
    • Replacement
MusicalDramaRevival
West Side Story (Sep 30, 2010 - Jun 10, 2012)
  • Musical Director: John O'Neill
  • Conducted by John O'Neill
MusicalDramaRevival
A Chorus Line (May 04, 2008 - Jun 13, 2010)
  • Musical Director: John C. O'Neill
  • Conducted by John C. O'Neill
MusicalDramaRevival

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