Rachael Leigh Cook (b. 1979) plays the character Abigail Lytar on the series Psych.
Cook is an American actress who has also appeared in episodes of Dawson's Creek, Batman Beyond (for voice), Into the West, Las Vegas, Robot Chicken, and Titan Maximum (for voice). She also appeared in movies, such as The Baby-Sitters Club, Tom and Huck, Carpool, The House of Yes, The Eighteenth Angel, Strike!, The Naked Man, The Hi-Line, She's All That (with actor Dulé Hill), The Bumblebee Flies Anyway, Sally, Get Carter, Antitrust, Blow Dry, Josie and the Pussycats, Texas Rangers, Tangled, 29 Palms, Scorched, Bookies, The Big Empty, 11:14, Tempo, My First Wedding, Stateside, Nancy Drew, All Hat, The Lodger, Bob Funk, and Falling Up. She'll also be appearing in future movies, including Broken Kingdom, The Family Tree, and Kerosene Cowboys.