Nocturne

Episode Number: 4.06

Original Air Date: February 9, 2005

Written By: Jeff Pinkner

Directed By: Lawrence Trilling

Press release copyright ABC.

WHEN SYDNEY IS INFECTED WITH A DEADLY HALLUCINOGEN, IT'S UP TO VAUGHN AND JACK TO FIND THE ANTIDOTE BEFORE HER RESULTANT VIOLENT BEHAVIOR CONSUMES HER, ON ABC'S "ALIAS"

"Nocturne" - Sydney becomes infected with a mind-altering and potentially deadly hallucinogen, causing her to slowly lose touch with reality. Vaughn and Jack must scramble to find an antidote before Sydney's hallucinations, paranoia and resultant violent behavior threaten her life and the lives of those around her, on "Alias," SUNDAY, FEBRUARY 9 (9:01-10:02 p.m., ET), on the ABC Television Network.

Guest starring are Nick Jaine as Dr. Maneesha Jain, Julie Ann Emery as Nancy Cahill, Julia Levy-Boeken as Martina, Liza De Weerd as Anna-Dutch student, Michael Nagy as Letuza (aka pale blond man), Will Schaub as Jason Cahill, Michael Goorjian as Andre Sterescu, Sunah Bilsted as kissing blond, Ryan Gentry as not Vaughn and Craig Ricci Shaynak as Czech guard.