Brothers in Arms

"Brothers in Arms" is the tenth episode of Season Four of Criminal Minds.

Summary
As a former cop, Morgan takes it personally when a serial killer specifically targets officers on the police force in Phoenix, Arizona.

Guest Cast

 * André G. Ellingson - Cop
 * Shane Conrad - Officer Mark Cunningham
 * Charles Hoyes - Sergeant Selby
 * Roddy Jessup - Sergeant Daws
 * Zokai Holmes - Sharpshooter
 * Kevin Scott Allen - Bartender
 * Doug Jones - Beanie
 * Maria Russell - Police Operator
 * Hollis Doherty - Maggie Cunningham
 * Dylan Sprayberry - Sam Cunningham
 * Alexander Bedria - Officer
 * Guillermo Díaz - Playboy
 * Joe Regalbuto - Commander Marks
 * Mark Pellegrino - Lieutenant Evans
 * Bo Foxworth - Officer Ron Mercer
 * Roberto Sanchez - Sergeant Manuel Rodriguez
 * Jake McLaughlin - Officer Thomas Kayser
 * C.J. Brown - Scrappy Boy #1
 * Reed Harper - Scrappy Boy #2
 * Darrell Bryan - Father
 * Meta Golding - Agent Jordan Todd

Bookend Quotes

 * Derek Morgan: "We are all brothers under the skin and I, for one, would be willing to skin humanity to prove it." Ayn Rand
 * Derek Morgan: "For he today who sheds his blood with me shall be my brother." William Shakespeare