Marla Lynne Sokoloff (SOCK-oloff) (born December 19, 1980) is an American actress. She is known for playing Lucy Hatcher on the legal drama television series The Practice, and Gia Mahan on Full House and Fuller House. She has also appeared in films True Crime (1996), Dude, Where's My Car? (2000), Sugar & Spice (2001) and Love on the Side (2004).