The Stargazer is a mysterious, old, priestess-like figure, that is used for tracking the actions of contractors. Her real name is Hoshimi, but she is often referred to as "the Stargazer". She lives at the National Astronomical Observatory of Japan. She rarely speaks, but when she does, she speaks in riddles. She is also immune to Amber's Contractor abilities, and is able to talk while time is frozen.  (Source: DTB Wiki) 

In Tokyo, an impenetrable field known as "Hell's Gate" appeared ten years ago. At the same time, psychics who wield paranormal powers at the cost of their conscience also emerged. Hei is one of the most powerful of these psychic agents, and along with his blind associate, Yin, works for one of the many rival agencies vying to unlock the mysteries of Hell's Gate.
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(Source: Anime News Network)

She was married to fellow voice actor [Grant James](https://anilist.co/staff/100442/Grant-James) from 1984 until his passing in 2022.

Madam Stargazer