Shai, Corporal Hau-zhi, Imperial Cadre-Fire Team Bravo, 1st Squad, 1st Platoon, Charlie Company, 3rd Battalion, 2nd Regiment, 5th Brigade, Imperial Cadre.
Shangup, President Kapkye Lhakpa-Planetary President, Gyangtse.
Shapiro, Captain Chaim, Imperial Marine Corps-CO, Delta Company, Recon Battalion, 1st Regiment, 517th Brigade.
Sharwa, Colonel Ang Chirgan-CO, 1st Capital Regiment, Gyangtse Planetary Militia.
Shernsiya niha Theryian-Rishathan senior war mother and farthi chir ("mother of mothers") of Clan Theryian.
Shidahari, Corporal Allen, Imperial Cadre-Fire Team Alpha, 3rd Squad, 2nd Platoon, Charlie Company, 3rd Battalion, 2nd Regiment, 5th Brigade, Imperial Cadre.
Shu, Commander Rachel-James Howell's senior intelligence officer.
Shwang, Shau-pang-Section Leader, Freedom Alliance Liberation Army.
Sikorsky, Surgeon Lieutenant Natalie, Imperial Fleet-ship's surgeon, HMS Vindication, detached for SAR, Mathison's World.
Singh, Lieutenant Albert, Imperial Fleet (retired)-a "pirate" strike leader.
Skogen, Corporal Adam, Imperial Cadre-Fire Team Bravo, 2nd Squad, 1st Platoon, Charlie Company, 3rd Battalion, 2nd Regiment, 5th Brigade, Imperial Cadre.
Solu, Private Chepal Pemba-Alpha Company, 1st Battalion, 1st Capital Regiment, Gyangtse Planetary Militia.
Sosa, Corporal Jack, Imperial Cadre-Fire Team Alpha, 2nd Squad, 3rd Platoon, Charlie Company, 3rd Battalion, 2nd Regiment, 5th Brigade, Imperial Cadre (Louvain).
Star Runner-the starship Megaira's free-trader alias.
Stone, Corporal Frederica, Imperial Cadre-Fire Team Alpha, 2nd Squad, 3rd Platoon, Charlie Company, 3rd Battalion, 2nd Regiment, 5th Brigade, Imperial Cadre (Louvain).
Strassmann, Lieutenant Tobias, Imperial Cadre-CO, 1st Platoon, Charlie Company, 3rd Battalion, 2nd Regiment, 5th Brigade, Imperial Cadre.
Suarez, Inspector Hector, Ministry of Justice-CO, Justice Ministry strike force for Operation Clean Sweep.
Tanner, Lieutenant Ruth-purser of the free-trader Star Runner.
Tarbaneau, Captain Esther-CO, the Star Assassins.
Teng, Corporal Rwyun-yin, Imperial Cadre-Fire Team Alpha, 3rd Squad, 1st Platoon, Charlie Company, 3rd Battalion, 2nd Regiment, 5th Brigade, Imperial Cadre.
Thaktu, Ang Jangmu-Namkha Pasang Pankarma's second in command, Gyangtse Liberation Front.
Thompson, Surgeon Commander Valentine, Imperial Fleet-one of Surgeon Captain Okanami's surgical team members.
Thönes, Sergeant Ludovic, Imperial Cadre-company clerk (and Alicia DeVries's wingman), Charlie Company, 3rd Battalion, 2nd Regiment, 5th Brigade, Imperial Cadre (Louvain).
Tigh, Colonel Arturo, Imperial Marine Corps-CO, Jefferson Field Security Command, Soissons.
Tisiphone-one of the three Greek Furies.
Trammell, Captain Kevin, Imperial Marine Corps-CO, Alpha Company, Recon Battalion, 1st Regiment, 517th Brigade.
Trang, Commodore Oliver, Imperial Fleet-CO, Elysium System Fortress Command.
Treadwell, Fleet Admiral Subrahmanyan-Imperial Governor, Franconia Sector.
Truman, Major Samuel, Imperial Marine Corps-CO, 2nd Battalion, 3rd Regiment, 317th Brigade.
Ulujuk, Corporal Robert, Imperial Cadre-Fire Team Alpha, 2nd Squad, 3rd Platoon, Charlie Company, 3rd Battalion, 2nd Regiment, 5th Brigade, Imperial Cadre.
Ustanov, Colonel Tyler, Imperial Marine Corps-CO, 1st Regiment, 517th Brigade.
von Hamel, Captain Marius, Imperial Marine Corps-CO, Elysium planetary garrison.
Watanabe, Commander Hirokichi-junior fire control officer, Procyon (James Howell's flagship).
Watts, Captain Wadislaw, Imperial Marine Corps-intelligence specialist attached to support the Imperial Cadre. Later promoted to colonel.
Westfeldt, Admiral Yussuf-CO, Westfeldt's Wolves.
Wheaton, Gunnery Sergeant Michael "Mike," Imperial Marine Corps-platoon sergeant, 2nd Platoon, Bravo Company, Recon Battalion, 1st Regiment, 517th Brigade.
Winfield, Sergeant Major Samuel, Imperial Marine Corps-battalion sergeant major, Recon Battalion, 1st Regiment, 517th Brigade.
Wu, Captain Kathryn, Imperial Fleet-CO, HMS Tsushima.
Yerensky, Anton-a MaGuire smuggler who charters Star Runner.
Yrjö, Corporal Rauha, Imperial Cadre-Fire Team Alpha, 1st Squad, 3rd Platoon, Charlie Company, 3rd Battalion, 2nd Regiment, 5th Brigade, Imperial Cadre.
Yu, Sergeant Jonas-a member of Albert Singh's strike group.
Yuroba, Baron (see MacKane, Andrew Clement, above).
Yussuf, First Sergeant Pamela, Imperial Cadre-company first sergeant, Charlie Company, 3rd Battalion, 2nd Regiment, 5th Brigade, Imperial Cadre.
Zigair, Private Frinkelo, Imperial Marine Corps-grenadier, Fire Team Bravo, 3rd Squad, 2nd Platoon, Bravo Company, Recon Battalion, 1st Regiment, 517th Brigade.