Tania Raymonde Helen Katz (born March 22, 1988) is an American actress. She played Alex Rousseau in the ABC series Lost from 2006 to 2010, and Cynthia Sanders on the Fox sitcom Malcolm in the Middle between 2000 and 2002. She has appeared on MTV's Death Valley (2011), in the horror film Texas Chainsaw 3D (2013). She notably portrayed infamous convicted killer Jodi Arias in the Lifetime biographical film Jodi Arias: Dirty Little Secret (2013). In April 2015, she joined the cast of the TNT series The Last Ship. From 2016 to 2021, she starred in the Amazon Prime Video series Goliath. (Via Wikipedia)