Egan has guest starred on such television series as Dawson’s Creek and One Tree Hill. Her debut film role was as Ali Court in the 2005 movie, Wrestling. On July 10, 2006, she debuted on the daytime soap opera All My Children as runaway mother Annie Novak Chandler. Coincidentally, one of Egan’s first acting appearances was on All My Children at age 12, playing an extra.

On January 20, 2011, a statement was released on Egan’s Facebook page that she has decided to leave All My Children: “After 4 and a half incredible years as a member of the All My Children cast, I have made the extremely difficult decision to leave the Pine Valley family that I have come to love and respect so much.”

Egan returned to All My Children for a three-episode arc to wrap up Annie’s storyline with Ryan Lavery and Emma Lavery which culminated on August 5, 2011.

On October 3, 2011, it was announced that Egan had joined The Young and the Restless as a mystery woman, Chelsea Lawson, involved in Billy Abbott’s arrest in Myanmar. Her first airdate was November 11, 2011. On January 31, 2018, Egan confirmed earlier reports that she had decided to leave the soap, saying it was a “goodbye for now” on her social media. It was further reported that the door would be left open for the actress to return. In April 2019, it was announced that Egan was reprising her role on the show.

On June 7, 2012, Egan played the role of Milo’s date Jessica on TBS sitcom Men at Work.

Egan was born to Mary and Dennis Egan, and is the middle child. She has two brothers, Ryan and Scott. She was raised Roman Catholic. In February 2013, she became engaged to Matt Katrosar, and the couple were wed on July 26, 2014, in an interfaith service in Santa Barbara, California. Egan graduated from the University of North Carolina at Chapel Hill with a B.A. in Dramatic Art.