Wallace began her acting career in 2005. She has appeared in episodes of the television series "Judging Amy" (2005), "Grey's Anatomy" (2006), "Cold Case" (2008), "Boston Legal" (2008), "Glee" (2009, 2013), "Ghost Whisperer" (2010), "Workaholics" (2012), "Rizzoli & Isles" (2012–present). Apart from television work, she also appeared on the television movies "Company Town" (2006) and "Amish Grace" (2010), and her first feature movie "" (2008).