402: Fast Friends
403: Made Men
614: Sense Memory
The BAU travels to Los Angeles to investigate unusual murders throughout the city. Also, more of "Prentiss' mysterious past comes to light. Guest stars include Brad William Henke ("Lost," "Dexter") as taxi driver "Steve;' Matthew Glave ("ER," "Army Wives") as "Detective Bailey, who assists the investigation; Stacey Oristano ("Friday Night Lights") as missing woman "Anisa Gold; and Timothy V. Murphy ("24") as "Ian Doyle, a person from Prentiss' past.
615: Today I Do
The BAU is called to upstate New York to investigate mysterious disappearances. Also, "Prentiss gets some disturbing news about one of her former Interpol colleagues. Guest stars include Rachel Miner as a missing person,"Molly; Corbin Bernsen as Molly's father, "Jerry; and Joshua Leonard as Molly's boyfriend, "Lyle.
"Reid makes a connection with an autistic child that could assist the BAU in finding the boy's missing parents. Also, "Prentiss enlists two former Interpol colleagues in hunting an old nemesis. Guest Stars include Sebastian RochÃ© ("General Hospital," "Fringe") as "Clyde Easter, one of Prentiss' former colleagues; Jessica Lundy ("Hope & Gloria") as missing parent "Alison Sparks; Mimi Kennedy ("Dharma & Greg," "Homefront") as teacher "Miss Rogers; and Romy Rosemont ("Glee," "CSI: Crime Scene Investigation") as "Lizzie Sparks, the young boy's estranged aunt.
619: With Friends Like These
620: Hanley Waters
621: The Stranger
The BAU hunts a stalker in San Diego who is targeting college students. Meanwhile, the team comes under Strauss' scrutiny in the wake of the loss of "Prentiss. Indianapolis Colts tight end Dallas Clark guest stars as San Diego Police Officer "Austin Kent, who assists the BAU with the investigation.
622: Out Of The Light
623: Big Sea
The BAU is Florida-bound to investigate bodies discovered buried in the ocean floor off Jacksonville, but the case rattles "Morgan when his aunt suspects that her missing daughter is one of the victims. Denise Dowse ("The Guardian," "Beverly Hills, 90210") guest stars as Morgan's aunt, "Yvonne Burns.
624: Supply And Demand
The bodies of two missing persons are found in a car trunk, and the BAU suspects that an interstate human trafficking ring is at work. Also, "Hotch warns the team of possible changes, and they are surprised when a beloved team member returns. A.J. Cook returns as Jennifer "JJ" Jareau. Nicholas Brendon ("Buffy the Vampire Slayer") returns as Garcia's boyfriend, "Kevin Lynch. Amy Price-Francis ("24") guest stars as "SSA Andi Swan, head of the Domestic Trafficking Task Force, who assists the BAU on the case.
503: Birthday Blues
It's a not-so-Happy Birthday for Alex, who's still reeling from her split with Charlie. To make matters worse, she makes a promise to a young girl, whose own birthday is derailed by her father's sickle cell crisis. Charlie treats a paranormal skeptic, only to discover this supernatural naysayer has a haunting of his own. And Cassie confronts her inner fear of parasites with some exposure therapy, as she treats a brother/sister duo riddled with every infestation.
504: A Stranger Comes To Town
Tempers flare as Dev's med school rival, Billy Scott arrives at Hope Zion, while Alex breaks the rules and puts her job in jeopardy to help Manny save the life of an at-risk youth, and Charlie and Maggie treat an 1812 War re-enactor, whose complications align with the historical character he's playing.
501: Romeo And Juliet And Juliet