Cast & creator
Kathryn Gallagher
Best known for The Kelly Clarkson Show, The Flash, Blue Bloods
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.
Movies
8
film credits
Series
9
television credits
Career
17
2010–2025 · acting roles
Credit score
6.8
average across scored titles
Signature credits
Known for
Across film & television
Filmography (17)
Showing 17 of 17 credits
Series
★ 6.2
The Kelly Clarkson Show
Self
2019
Series
★ 7.7
The Flash
Lia Nelson
2014
Series
★ 7.8
Blue Bloods
Diane Butler
2010
Series
★ 8.0
You
Annika
2018Series
★ 8.0
You
Annika Atwater
2018
Series
Stars in the House
Self
2020
Series
★ 7.3
Gossip Girl
Heidi Bergmann
2021
Series
★ 7.3
Modern Love
Whitney
2019
Movie
★ 6.4
Woman of the Hour
Charlie
2024
Series
Pretty Gay
Self
2024
Movie
★ 6.7
Parachute
Gwen
2024
Movie
★ 6.7
Pavements
Loretta
2025
Movie
★ 3.0
Ordinary Girl in a Tiara
Philippa Levreaux
2025
Movie
★ 7.8
Ben Platt: Live from Radio City Music Hall
Self
2020R
Movie
Rest & Relaxation
Movie
★ 6.0
One Night Only: The Best of Broadway
Performer
2020
Movie
Jagged Live In NYC: A Broadway Reunion Concert
Bella
2020