Alexandra Daddario is an American actress. Alexandra Daddario is best known to film audiences as Annabeth Chase in the 2010 film Percy Jackson & the Olympians: The Lightning Thief. Alexandra Daddario was also in The Squid and the Whale, All My Children, The Babysitters, The Attic, and The Hottest State.

Alexandra Daddario was raised on the Upper East Side; her parents are lawyers. She wanted to be an actress when she was a child but her first television role did not come about until she was 16 years old, when Alexandra Daddario booked a single episode in the role of victimized teen Laurie Lewis on All My Children.

She co-starred with Logan Lerman in Percy Jackson & the Olympians: The Lightning Thief, the fantasy-adventure movie which was released on the 12th of February, 2010.