[1] She grew up in a show business family: her parents are former professional actors, and her younger sister, Portia, is an actress as well.

[4] Doubleday made her acting debut in an episode of the CBS procedural Without a Trace in 2002 and in the same year appeared in the feature film Catch Me If You Can.

[5] In the following years, Doubleday continued performing on television, with small parts on CSI: Miami, Brothers & Sisters, Bones, The Closer, Criminal Minds, Drop Dead Diva and Witches of East End.

[6] Also in 2015, she was cast in the independent drama film Po directed by John Asher, about a single father raising a son with autism.

In 2017, she featured in the popular horror series Scary Endings alongside Australian actor Adam J. Yeend in an episode titled "The Water Rises".

[11][12] Doubleday's character plans a successful Elvis-themed Christmas exhibit amidst a larger fundraiser on the grounds of Graceland.