Mariner Valley, Mars
|Affiliation||Earth Defence Force|
|Appears in||Red Faction: Guerrilla - Demons of the Badlands|
|Voiced by||Michael Cudlitz|
Captain Saul Marius (unknown - 2117) is the Earth Defence Force commander in charge of the Mariner Valley Sector of Tharsis. He is killed during a base inspection of the EDF Cliffside Outpost, after his presence is discovered by the Marauders. Marius and his three bodyguards (equipped with super gauss rifles, which are unlocked after the last mission) are killed by the hand of Samanya, as part of her sister Vasha's plan to get back at the EDF after a previous ambush backfires on the soldiers.