Acting
In 2011, Lilley had a supporting role in director Michel Hazanavicius's silent movie The Artist, which won five Academy Awards including Best Picture. She also appeared as Monie in the iCarly TV movie, "iParty with Victorious".
In autumn of 2011, Lilley took over the role of Maxie Jones, as a temporary recast for Kirsten Storms on General Hospital while she was on medical leave for endometriosis. She made her on-screen debut on September 28, 2011. In August 2012, Lilley confirmed that she had finished taping and made her on-screen exit on August 20, 2012; Storms later returned on September 5.
In April 2013, Lilley joined the cast of Days of Our Lives as a newly created character. She made her on-screen debut as Theresa Donovan on July 3, 2013. Lilley was a principal cast member when Days of Our Lives won the Daytime Emmy for Outstanding Drama Series. In June 2016, she confirmed she was exiting the soap due to the demanding filming schedule hindering her ability to pursue other commitments and opportunities. Lilley reprised her portrayal as Theresa in May–July 2018.
In November 2016, Lilley appeared in a film for the Hallmark Channel titled A Dash of Love. In June 2018, she played Charlotte in the Hallmark Channel film Yes, I Do, followed later that same year by playing Molly in the Hallmark Channel holiday film Mingle All the Way. In 2022, Lilley ended her association with Hallmark Channel, and signed a four-film deal with GAC Media, the owners of Great American Family channel.
