In the episode, airing on October 7, Avery welcomes D.B. Russell to the team as they investigate a burglary/homicide committed by someone who hacked the home’s security system remotely. Also in the premiere, Avery considers moving to a new position within the hierarchy of the FBI, Krumitz is a witness in his sister’s trial, Elijah deals with a delicate family situation and more is revealed about Nelson’s and Raven’s backgrounds.
Ted Danson’s D.B. Russell character will become the new Director of Next Generation Forensics, who transfers to Washington, D.C. from Las Vegas.
The guest cast for “Why-Fi” includes Landall Goolsby as Harlan, Brian Groh as Lonnie, Angela Trimbur as Francine Krumitz, Ione Butler as Ellen Peters, McKenna Roberts as Rae, Serendipity Lilliana as Harlan’s daughter, Zakary Shawn Risinger as Harlan’s son, Shiloh Nelson as Lindy, Elyse Cole as Young Francine, Shane Francis Smith as Young Krumitz, Molly Burnett as Nina, John Patrick Kelly as Judge, Tiffany C. Adams as Defense Attorney, Greg Cromer as John Fable.