Background
McLellan was born in Louisiana Jolla, California, and raised in Washington.
McLellan was born in Louisiana Jolla, California, and raised in Washington.
She is of Irish descent. In 1992, she was homecoming queen at South Kitsap High School in Portuguese Orchard, Washington. In 1995, she began her career on television, appearing in later years on Sliders, Diagnosis: Murder, and Star Trek: Voyager.
In 2000, McLellan had her first major movie role, in the fantasy film Dungeons & Dragons.
In 2001, McLellan joined the cast of Columbia Broadcasting System procedural Judge Advocate General, in a recurring role as Navy Petty Officer Jennifer Coates. Foreign the final season of the show she was upped to series regular.
After the series ended, McLellan was cast as the wife of Peter Krause"s character, in the American Broadcasting Company soapy comedy-drama series Dirty Sexy Money. The series was canceled after two seasons in 2009.
McLellan later guest-starred on House and The Mentalist, and also had roles in a Lifetime movies.
In 2014 she began playing the female leading role in the Columbia Broadcasting System procedural NCIS: New Orleans.