Kathryn Gallagher is an American singer and actress best known for her portrayal of Bella Fox in the Broadway musical Jagged Little Pill, for which she received a Grammy Award for Best Musical Theater Album and a nomination for the Tony Award for Best Featured Actress in a Musical.

Filmography

• 2025Ordinary Girl in a Tiara — Philippa Levreaux
• 2025Pavements — Loretta
• 2024Parachute — Gwen
• 2024Woman of the Hour — Charlie
• Gossip Girl — Heidi Bergmann
• 2020Jagged Live In NYC: A Broadway Reunion Concert — Bella
• 2020One Night Only: The Best of Broadway — Performer
• Modern Love — Whitney
• You — Annika, Annika Atwater
• The Flash — Lia Nelson
• Blue Bloods — Diane Butler
• Rest & Relaxation

Appearances as themselves (4)

• Pretty Gay — Self
• 2020Ben Platt: Live from Radio City Music Hall — Self
• Stars in the House — Self
• The Kelly Clarkson Show — Self