Rosetta Ivers was the late sister of Alice Ivers. Very little is known about her, other than her death. Rosetta and Alice attempted to find a sanctuary in the apocalypse by setting up base in a parking lot in Dejado.
One day, when Rosetta left to retrieve water from the nearby tower, she didn't return. When Joe Wheeler turned up in Dejado and went to the tower, at the request of Alice, he found Rosetta's reanimated corpse, barking and shrieking at him. She had been infected by the Red Strain.
Joe swiftly put her down, and Alice came later to pay her respects.