After acting in several shows while in high school and college, Proske was hired for her first professional role in Steel Magnolias by Robert Harling, in 2008. She portrayed Shelby. In 2009, she portrayed Titania and Hippolyta in A Midsummer Night's Dream at Mysterium Theater of Santa Ana and had the role of Mariah in an Off-Broadway production of Pope Joan.

She was hired for her first movie role in 2010, as Becca Crane — a parody of Bella Swan from the Twilight saga — in Vampires Suck. She had originally been called for the role of Iris, the parody of Alice Cullen. Vampires Suck received almost universally negative reviews, but Proske's performance was praised by several critics.