From 2004 to 2005 Moreau starred as Monica Young in the series Life As We Know It. She starred as Suzanne in the 2006 series What About Brian. She starred as Linda in the TV series Shameless from 2011 to 2012 and as Dr. Emma Marling in Grey’s Anatomy from 2013 to 2014. Moreau has starred in the movies Free Willy2: The Adventure Home, Wag the Dog, Mighty Joe Young, Wet Hot American Summer, Queen of the Damned, Runaway Jury, The Uninvited, Beverly Hills Chihuahua, Ingenious, and Caroline and Jackie. Marguerite was nominated for a Young Artist Award in 1993 and won a Character and Morality in Entertainment Award in 2003.
