Erin was born in White Plains, NY, but considers Greenwich, CT where she lived from age 9 through high school her hometown. She attended Northwestern University and has a Bachelor of Science degree in Performance Studies (Magna Cum Laude). It was there that she began to explore writing and adaptation, as well as acting. She spent her junior year abroad in London, through Marymount College, where she cultivated her great love of Shakespeare.

After college Erin moved to New York where she jumped into the theater. Her leading role in Hunter for Hunter Green, by Sam Forman, landed her theatrical representation, and after booking a few television jobs, Erin decided to move to Los Angeles. Since moving to Los Angeles, Erin has appeared in leading and supporting roles in numerous feature films and in guest starring and recurring roles on ABC, NBC, CBS, NIK, FOX, Lifetime, and Disney Channel series. She was cast in a contract role on the daytime soap opera Passions where she played the role of Esme Vanderhausen from 2005-2008, and was named "Soap Opera's Digest's Most Entertaining Character of 2007". From 2008-2011 Erin played Miss Emma Tutweiller on the Disney Channel series, The Suite Life On Deck.

Erin also has a growing career as a writer and producer. In addition to writing and producing the feature film, Speak Now (2012), and the short film, The Murder of Donovan Slain (2004), Erin has worked as a writer for Alcon Entertainment, Alloy Entertainment, and has developed original TV projects with Mandeville Films and Television, Storyline Entertainment and Brillstein-Grey Entertainment. She currently has three original feature films in various stages with Team Todd Productions, Little Engine Productions, and Underground Films.

In addition, Erin is the Executive Director of Warner Loughlin Studios, a private professional acting studio in Hollywood, where she also works as a senior teacher.