Mercedes McNab has been acting professionally since she was 10 years
old. She was born and raised in Vancouver, British Columbia, but moved
with her parents to Los Angeles at age 9. She wanted to be an actress and
soon landed an agent.
Her first role, at age 10, is probably her best-known: a bit part as the young
Girl Scout in the hit film
The Addams Family (1991). She
even landed a similar role as Amanda in the sequel,
Addams Family Values (1993). But
the role she is most famous for is a recurring role as dimwitted Harmony
Harmony Kendall on
Buffy the Vampire Slayer (1997) for four years, then its spinoff,
Angel (1999) in a guest spot in 2001 and later as a regular for its final
season from 2003-2004.
Some of her television appearances include the unaired Fox television
pilot for
Buffy the Vampire Slayer (1997) and appearances in
Harry and the Hendersons (1991),
Touched by an Angel (1994),
and
Walker, Texas Ranger (1993).