Kellie Noelle Martin is an American actress and producer. She is known for her roles as Rebecca "Becca" Thatcher in Life Goes On (1989–1993), Daphne Blake in A Pup Named Scooby-Doo (1988–1991), Christy Huddleston in Christy (1994–1995), Lucy Knight on ER (1998–2000), Samantha Kinsey in Mystery Woman TV film series (2003–2007), and as Hailey Dean in the Hailey Dean Mystery TV film series (2016–present).