Not much else is known about Missy, since she is only seen in the family tree of her grandchildren. According to her SimDNA in SimPE, her hair was red before it turned grey. According to Missy's age data, she had 27 days left in the elderlife stage when she died. As with many pre-made Sims in Strangetown, the "Skintone" part of her Sim DNA is missing. Missy bears a striking resemblance to Alyssa Pachis and a slight resemblance to Kaylynn Langerak. According to her son's memories, she died right after the birth of Tank. Judging from her personality, Missy was probably relaxed and easy going, unlike her son.
This Sim has no character data and cannot be resurrected in-game. For more information, read this guide.