Kellie Noelle Martin (born October 16, 1975) is an American television actress. She is known for her roles as Rebecca "Becca" Thatcher in Life Goes On (1989–1993), Christy Huddleston in Christy (1994–1995), Lucy Knight on ER (1998–2000), Samantha Kinsey in Mystery Woman (2003–2007), and as Hailey Dean in the Hailey Dean Mystery series (2016–present).