Tina Belcher is the eldest Belcher child. She was said to be autistic in the first episode, but the claim was immediately dismissed by her parents. She generally speaks in a low, monotone voice, works part-time at the family restaurant, and is often the voice of reason among the Belcher children, though it is made quite clear Tina's own characteristics rival those of her siblings. She is trying to come to grips with her entry into adulthood, and claims to have a complicated relationship with zombies.

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