She played Casey on the O.C.
Kayla Noelle Ewell is an American actress known for her roles on television as Caitlin Ramirez on CBS's long-running soap opera, The Bold and the Beautiful, as Maureen Sampson on NBC's acclaimed Freaks and Geeks, and as Vicki Donovan on The CW's The Vampire Diaries.
Ewell first appeared on the television series Freaks and Geeks in 2000, playing Maureen Sampson in the episode "Carded and Discarded", directed by Judd Apatow.She starred on the soap opera The Bold and the Beautiful from 2004–2005, and has guest-starred on the TV series The O.C., Boston Public, Veronica Mars, Close to Home and Entourage. She had a role in the film Just My Luck, starring Lindsay Lohan, and in Material Girls, starring Hilary and Haylie Duff, in 2006. She had a starring role in the film Senior Skip Day.