Ash has played various roles in
Scare Tactics as well as the Canadian TV series
Almost Heroes where she won the Canadian Comedy Award for Best Female Improviser. She also won Best Comedic Play in 2008 and Best Sketch Troupe in 2006. She had a recurring role in
The Ron James Show and made guest appearances in
Lost Girl,
Cracked,
Bomb Girls and
Call Me Fitz. Other film and television credits include
Video on Trial,
Hotbox and the Academy Award-nominated film
Lars and the Real Girl. She was also the voice of Sam Goldman in the animated Canadian series
The Dating Guy. She was part of the American sitcom
Super Fun Night alongside
Rebel Wilson and
Liza Lapira. She previously appeared in the first season
Comedy Central series
Another Period as Hortense, having taken over the role from
Artemis Pebdani who played her in the pilot. She won the
Canadian Screen Award for
Best Supporting Actress in a Comedy Series at the
3rd Canadian Screen Awards for her appearance on
Spun Out. Ash starred as Dina Fox from 2015 to 2021 on the
NBC sitcom
Superstore. From 2018 to 2020, she voiced Scorpia in
She-Ra and the Princesses of Power. In 2020, she began a weekly podcast titled
True Crime and Cocktails with her cousin Christy Oxborrow. On April 13, 2021,
Variety reported that Ash had signed an overall talent and development deal with
NBCUniversal. She will also write a half-hour comedy pilot with Universal Television as part of her contract. She also starred in the Netflix animated comedy
Chicago Party Aunt in the same year. In 2022, Ash has mentioned that she wrote a screenplay and she's looking to pitch her spec. In 2023, Ash became a series regular playing Lexi Rhodes on the television show,
Not Dead Yet. The show was canceled in 2024 after two seasons. == Music career ==