Ash was born in Florida, but later traveled around the world due to her parents' military status. She graduated from Columbia High School in Decatur, Georgia. She is one of four children her brother being Donald Ash a Youtuber who makes videos about his life in Japan and hosts www.thejapanguy.com When she got older, Ash planned on becoming a doctor and she prepared to attend medical school. However, after a trip to Japan, where she became a backup singer and a runway model, Ash decided to pursue a career in entertainment.
In February 2006, Ash landed multiple job opportunities in Broadway shows like The Lion King and a two week job in Germany. After returning from the job in Germany, Ash successfully auditioned for the cable television comedy show The Big Gay Sketch Show. Ash was a cast member for only two seasons. While she was a cast member, Ash had to split her time between the first season of the sketch show and the Lion King. Some of her characters included LaTanya, an uncouth, loudmouth fitness instructor who teaches classes with a "Chicago-style" twist (i.e. Chicago style yoga, Chicago style pilates).
Ash joined the cast of MadTV in 2008 as a feature performer, for the fourteenth season, along with Matt Braunger, Eric Price, and Lauren Pritchard. She became the fifth African American female cast member in the show's history (Debra Wilson, Daniele Gaither, Nicole Randall Johnson and Daheli Hall were the first four respectively). Out of the five female African American cast members, Ash and Hall are the only two who were never promoted to a repertory player. Hall was let go after her first season (season 13) and Ash was a featured member of the cast during what would be MADtv's final season (14th season).
On her short time on the show, Ash was known for her character, Cerise Muhammad, the airheaded daughter of a deceased civil rights leader, and her celebrity impressions of Lisa Leslie, Mo'Nique, Raven-Symone, Michelle Obama, Naomi Campbell, and Whoopi Goldberg.