In 2014, she joined the cast of the Daytime Emmy Award winning soap opera Days of Our Lives, portraying the role of Paige Larson; she debuted on March 3, 2014. O'Brien is signed to a two-year deal with the series. In June 2015, it was reported that O'Brien was let go from the soap, and last appeared on September 9, 2015. In 2016, she joined the upcoming series Queen Sugar as Stella.