Mercedes Alicia McNab (born March 14, 1980) is a Canadian actress. Her most known performances include Harmony Kendall on Buffy the Vampire Slayer (1997–2001) and its spinoff Angel (2001–2004). She is also known for her role as pretentious Amanda Buckman in Addams Family Values (1993) and Misty in the horror films Hatchet (2007) and Hatchet 2 (2010).