Patricia Arquette returning to 'CSI' before 'CSI: Cyber' kicks off

Patricia Arquette is returning to CSI this fall.

EW has learned exclusively that the actress will reprise her role as Special Agent Avery Ryan in an episode slated for Nov. 2. Ryan is the head of the FBI’s Cyber Crime Division that will be explored on the new spin-off series CSI: Cyber. Arquette previously appeared on CSI in a backdoor pilot episode for Cyber last spring.

CSI: Cyber recently added to its cast, tapping James van der Beek and Peter MacNicol as new series regulars.

CSI returns Sept. 28 at 10 p.m., while CSI: Cyber will air on Sundays at 10 p.m. this spring.