United States Department of Defence

Department of the Air Force

 * United States Air Space
 * United States Air Force

Department of the Army

 * United States Army Military Police Corps:
 * Officer - ____ Campo, (Chicago Med S5 E7)
 * Officer - ____ Miller, (Chicago Med S5 E7)
 * United States Army:
 * Special Operations Command
 * U.S Army Rangers - 75th Ranger Regiment
 * First Ranger Battalion: Captain - Trever Jackson, (Chicago Med S1 E3)
 * 2nd Ranger Battalion: Captain - Omar A. Zidan, Former
 * 3rd Ranger Battalion: Rank ? - Jay Halstead, Former
 * 12th Infantry Regiment
 * ??? Battalion: Rank ? - Kenny Crosby
 * Commissioned Officers
 * Lieutenant - _____ Sclera, (FBI: Most Wanted S1 E5)
 * Lieutenant - Scot Weitzen, (FBI: Most Wanted S1 E5)
 * Captain - Christine Sims, (Chicago Med S5 E7)
 * Enlisted Personnel
 * Caporal - _____ Palmer, (FBI: Most Wanted S1 E5)
 * Sergeant - Gina Todd, (Chicago Med S5 E7)

Department of the Navy

 * United States Marine Corps:
 * Staff Sergeant - _____ Baxter, (Chicago PD S9 E3)
 * Staff Sergeant - William Tucker, (Chicago Fire S6 E4)
 * Major General - _____ Finley, (FBI: International S1 E6)
 * United States Coast Guard:
 * United States Navy:
 * Special Operations Command
 * Lieutenant - Ryan Davis, (FBI S4 E3)
 * Commissioned Officers
 * Lieutenant Commander - Patrick Choi, 7th Navy Fleet (Chicago Med S7 E12)
 * Lieutenant Commander - Ethan Choi, Navy Reserve
 * Enlisted Officers
 * E-7 Level: Chief Petty Officer - _____ Mason, (Chicago Med S1 E8)
 * E-7 Level: Chief Petty Officer - _____ Mason, (Chicago Med S1 E8)