Biography
Kiersten Hargroder is a costume designer who has also been credited as Kiersten Ronning. She studied apparel design at Concordia College and began her career in the wardrobe department on films including The Girl with the Dragon Tattoo (2011), Star Trek Into Darkness (2013) and In Time (2011).
She has designed costumes for the television series Supergirl (2015–2017), You (2019) and Walker (2021), as well as the films To the Stars (2019), Borat Subsequent Moviefilm (2020) and Blink Twice (2024). Hargroder has collaborated with Colleen Atwood on several projects.

