Jessica Claire Timberlake (née Biel; born March 3, 1982) is an American actress. Biel began her career as a vocalist appearing in musical productions until she was cast as Mary Camden in the family-drama series 7th Heaven, for which she achieved recognition. The series is the longest-running series that ever aired on The WB channel and is the longest-running family drama in television history.

In 1997, she won the Young Artist Award for Best Performance in a Feature Film – Supporting Young Actress for her role in Ulee's Gold. She is known for her role as Erin Hardesty in The Texas Chainsaw Massacre (2003). Biel has since starred in many films, including The Rules of Attraction (2002), Blade: Trinity (2004), Stealth (2005), I Now Pronounce You Chuck & Larry (2007), The A-Team (2010) and Total Recall (2012).

Her voices include Neera in Planet 51, Naomi Canbell in The Planetokio Movie, and Vix in Spark.