<P> In the episode "Derailed", Chris Bauer guest - starred as Dr. Theodore Bryar, a paranoid schizophrenic who held several passengers hostage, including Elle Greenaway, on a train . Jeff Kober guest - starred as Bryar's imaginary friend, Leo, and M.C. Gainey guest - starred as Detective Frank Moretti, who leads the investigation of the hostage situation . In the episode "The Popular Kids", Will Rothhaar guest - starred as Cory Bridges, a cult killer who murdered two high school students . In the episode "Blood Hungry", Kris Lemche guest - starred as cannibalistic spree killer, Eddie Mays, and Lindsay Crouse played his mother, Mary . In the episode "What Fresh Hell?", Ned Vaughn guest - starred as Donald Curtis, a pedophile who abducts an eleven - year - old girl named Belinda Copeland . </P> <P> In the episode "Poison", Nick Jameson guest - starred as Edward Hill, a serial killer who murders people with poisonous drugs . In the episode "Riding the Lightning", Jeannetta Arnette guest - starred as Sarah Jean Mason, an inmate on death row who is determined to make sure her son never finds out the truth of his parentage . Michael Massee guest - starred as Jacob Dawes, a serial killer who murdered several teenage girls . In the episode "Unfinished Business", Aaron Lustig guest - starred as Walter Kern, aka "The Keystone Killer", and Geoff Pierson guest - starred as Max Ryan, a retired FBI Agent who is determined to find the killer . </P> <P> In the episode "The Tribe", Chad Allen guest - starred as Jackson Cally, a cult leader who tortures and murders college students . In the episode "A Real Rain", Ethan Phillips guest - starred as schizophrenic vigilante killer Marvin Doyle . David Aaron Baker played Will Sykes, an attempted copycat of Doyle who wanted to be famous, and Tonya Pinkins played Detective Nora Bennett, who leads the investigation of the killings . In the episode "Somebody's Watching", Katheryn Winnick guest - starred as Maggie Lowe, a serial killer and stalker who obsesses over actress Lila Archer . Ian Anthony Dale guest - starred as Detective Owen Kim, who leads the investigation of the murders . </P> <P> In the episode "Charm and Harm", Andy Comeau guest - starred as Mark Gregory, a serial killer and abductor who murders his victims by drowning them . In the episode, "Secrets and Lies", Ray Baker guest - starred as rogue CIA Agent Bruno Hawks . In the season finale "The Fisher King (Part I)", Charles Haid guest - starred as one of the series most notorious criminals, Randall Garner, aka "The Fisher King", a serial killer and abductor responsible for the attempted murder of Elle Greenaway . The incident proved to be so traumatizing, she resigned from the BAU the following season . </P>

Criminal minds season 1 episode 9 guest stars