Marla Sokoloff is an American actress. She is known for playing Gia Mahan on Full House and Fuller House, Cokie Mason in The Babysitters Club movie, and Lucy Hatcher on the legal drama series The Practice. She also appeared as Joey's sister Dina on Friends and as the nanny Claire on Desperate Housewives. She has starred in the films True Crime (1996), The Climb (1999), Whatever It Takes (2000), Dude, Where's My Car? (2000), Sugar & Spice (2001), The Tollbooth (2004), Love on the Side (2006), Play the Game (2009), and The Merry Gentlemen (2024).