While still in high school, Kremelberg made her television debut in 2006 with roles in an episode of
Law & Order: Special Victims Unit on
NBC and as a young version of
Crystal Chappell's character
Olivia Spencer in the
CBS soap opera
Guiding Light. Kremelberg guest starred in the 2010
Fringe special episode "
Unearthed" on
Fox. She had her first named film role in the 2012 drama
Nancy, Please. In 2013, she played Reese in
The Michael J. Fox Show on
NBC. She had her first starring film role as Izzy in the 2015 science fiction film
Campus Code. She then played Sorrell in
Sonja O'Hara's
Shudder series
Doomsday. In 2018 and 2019, Kremelberg had a recurring role as Nicole Eckelcamp in the fifth and sixth seasons of the
Netflix series
Orange is the New Black. She received a
Daytime Emmy Award nomination for her performance in the web series
The Feels, on which she also has writing credits. She wrote and produced the short film
O, Ryan. Kremelberg portrayed
Bernardine Dohrn in
Aaron Sorkin's 2020 film
The Trial of the Chicago 7 Also in 2020, she guest starred in an installment of the
Hulu horror anthology
Monsterland. Kremelberg joined the main cast of the
USA Network series
The Sinner as Percy Muldoon for its fourth and final season, which aired in 2021. She also played a young version of
Caroline Williams' character in the film
Ten Minutes to Midnight. Kremelberg stars as Sofia Wilmot in the British
Disney+ series
Renegade Nell. ==Personal life==