|First Appearance||Sanctuary (Part 1)|
|Last Appearance||Sanctuary (Part 1)|
|Allegiance||2nd Massachusetts Militia Regiment (formerly)|
|Family||Jeff Russell - Husband †|
Eli Russell - Son †
|“||No more Jeff! Don't hurt her.||”|
— Mary to her husband Jeff after he hits Anne.
Mary Russell was a civilian woman in the 2nd Mass, before robbing the 2nd Mass and fleeing with her family, only to be captured and killed by Terry Clayton.
Jeff takes his son to visit Dr. Glass as he says Eli isn't eating or sleeping, as a ruse for him and his family to steal antibiotics from Anne Glass. After Lourdes leaves Mary shuts her door behind her, and her husband Jeff pulls out a gun to get Anne to put the meds in a bag for something to trade. When Anne tries to run and call out Jeff punches her in the head with the gun and Mary tells him enough. After the Russell's run away from the school they are chased by the 2nd Mass fighters, however is eventually stopped by 7th Mass' Terry Clayton. Mary gets the bag of antibiotics and hands it to Terry, then they flee. Her son was later seen being handed over to Skitters by Terry Clayton in exchange for his continued survival. Like her husband, it is highly assumed that she was killed by the 7th Mass, to stop them from going back to the 2nd Mass.
|Season 1 appearances|
|Live and Learn||The Armory||Prisoner of War||Grace||Silent Kill|
|Sanctuary (Part 1)||Sanctuary (Part 2)||What Hides Beneath||Mutiny||Eight Hours|