Alexandra Hetherington Breckenridge is an American actress. She began her career with supporting roles in the teen comedy films Big Fat Liar (2002) and She's the Man (2006). She later played reporter Willa McPherson in the FX series Dirt and had a supporting role in the short-lived series The Ex List. She starred as a young Moira O'Hara in the first season of FX's American Horror Story, and played Kaylee in the third season. She played Jessie Anderson in the AMC series The Walking Dead and Sophie in the NBC series This Is Us. She is also the voice of various characters in the animated comedy series Family Guy. Since 2019, she has starred as Melinda "Mel" Monroe in the Netflix series Virgin River.