Mercedes Alicia McNab (born March 14, 1980 in Vancouver, British Columbia) is a Canadian actress that portrayed Lucy from Season 3 episode Fresh Blood.

 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).

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