Tomari is a young girl in fifth grade of elementary school. She first met Potemayo while chasing Guchuko after she stole some chestnuts from her. She later ran into Mikan and her brother Yasumi, whom she takes a liking to after he gives her a hat that Mikan had originally given her brother. Tomari is a tomboyish girl who rarely wears female clothing and has very short hair for a girl, which makes her look like a young boy; it came as quite a shock to Mikan and Yasumi to find out Tomari was a girl. (wikipedia)
A housewife from Lower Sotoba who works in drive-in Chigusa. She's xenophobic to the point of unhinged mentality, and forbids her children to play near the motorway as she believes the outsiders will take them away. Her conditions visibly worsens after her father-in-law, Iwao, becomes a Shiki and kills her husband, daughter, mother-in-law and culminates in insanity when her son, the last member of the family, is also murdered. Later, Motoko joins the Shiki extermination and betrays her friend Kanami's secret (that Kanami's mother Tae is now a Shiki and currently hiding in their house) to the villagers, leading to Tae's death and Kanami's abandonment of the village. She's obsessed with finding Iwao to avenge her children; her efforts are in vain as it's strongly implied that Iwao was already killed by Natsuno. At the end of the series, she becomes completely mad, and sets fire to the village and herself.
Kanami is the owner of a roadside restaurant, Chigusa. Kanami's mother dies due to anemia and becomes a Shiki. After finding her way back to Kanami's house, the mother is too helpless to kill and survive on her own, so Kanami keeps her alive by feeding her glasses of her own blood, not wanting her mother to kill innocent people. Kanami's friend and co-worker Maeda Motoko finds out about Kanami's secret and promises not to tell anyone. However, Motoko becomes jealous of Kanami getting her mother back (while Motoko's entire family died at the hands of her father-in-law, who became a shiki) and reveals this to the villagers, who broke into Kanami's house and killed her mother. After this incident, Kanami is seen leaving the village when the Shiki extermination continues.
Guchuko is another mysterious creature that appeared in Sunao's refrigerator, and is somewhat similar to Potemayo in appearance. Guchuko is named by KyÅ� Takamimori shortly after she ran into Guchuko at school. The name Guchuko is derived from a small chocolate ball called a guchu which Guchuko likes to eat, and -ko (å�, -ko?) added at the end, since it is a common ending for female given names in Japan. Guchuko carries an axe with a skull on it, and can fire strong energy beams from two living horns (or possibly worms) on either side of her head. She has a very self-sufficient personality, and has only partially warmed up to KyÅ�, who often gives Guchuko food when at school or at home; Guchuko sleeps in a tree right outside KyÅ�'s house. (Source: Wikipedia)
Hasegawa owns Cafe Creole and has a wife named Chiyomi. He is reluctant to kill the Shiki when the extermination begins participating in a Shiki cleansing in the pipelines, many villagers drag the Shiki outside to be killed in the daylight seeing how agonizing it is, he mercifully stabs them so they don't die in agony.