One of the brothers of Sheol, summonable for the remainder of the floor, and a name Samantha cannot fully remember.
Bautista looked up the Kimaris Figure that Carl holds and passed on what he found before entering the stairwell: Kimaris is one of the brothers of Sheol, and his summoning time is listed as "the remainder of the floor." Bautista's advice was simple — be careful with him.
Hearing the name, Samantha abandoned her flirting with Louis and zipped over demanding the figure, calling him "Kimmy" and insisting he was one of her best friends. Carl asked who Kimaris was to her, ruling out an ex-boyfriend since that was King Blaine. She said Kimaris was the one who gave her the potion that put her baby in her when she couldn't get pregnant — then stopped, unsettled, unable to recall how they met at all, before shouting that his mother should be killed and fleeing into the Saferoom.
Not seen directly in this chapter; known only through his stuffed-animal figure and Samantha's calling him "Kimmy."
A demon brother of Sheol whose summoning stone Carl now carries, and who is somehow tangled in Samantha's edited past.
Also appears in books you've already read — spoiler-safe to their endings: