After moving to Los Angeles with her family, Fink studied acting at an arts high school, where she performed in adaptations including "The Wizard of Oz" (as the Lion) and "You're a Good Man Charlie Brown" (as Lucy).

[citation needed] One of Fink's early roles was in the Tribeca Film Festival hit Fat Girls.

[4] She also appeared in the Walt Disney Pictures film You Again starring Betty White, Jamie Lee Curtis, and Sigourney Weaver[5] and in All About Evil alongside Mink Stole, Cassandra Peterson, Natasha Lyonne and Thomas Dekker.

[citation needed] Fink was cast as Lauren Zizes on the Fox television series Glee, making her initial appearance in the first season episode "Wheels" as a champion high school wrestler and cheerleader tryout candidate.

She made occasional appearances until the ninth episode of the second season, "Special Education," when she became the glee club's twelfth member.