- Gregory Bach - Olsen
- David Clennon - Marvin Caul
- Kayla Crance - Renee Sheffield
- Courtney Cunningham - Frida Bancroft
- Travis Hammer - Elijah Hall
- Keisuke Hoashi - Doctor John Chen
- Ashton Holmes - Finn Bailey
- Michael Irby - Cesar Jones
- Olga Pikhienko - Herself
- Darren Romeo - Himself
- Mark Sande - Bill
- Susan Santiago - Detective Solana Ramirez
- Sheila Shaw - Irma
- Karen Teliha - Gladys
- Keelin Woodell - Sarah Renfield
- "Jackhammer Manifesto" by Blue Stahli
- Spencer Reid: "The secret of my influence has always been that it remained secret." — Salvador Dali
- David Rossi: "Illusion is needed to disguise the emptiness within." — Arthur Erickson
- Courtney Cunningham, the actress who played victim Frida Bancroft, previously appeared in the season, portraying minor character Cora Bradshaw.
- The plot shares some similarities with the 1920 German silent horror film "The Cabinet of Dr. Caligari." In the film, a deranged "doctor" has his somnambulist proxy Cesare commit a series of murders during a festival in a small town.
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