Hildebrant was a Human scientist and Starfleet officer in the late 24th century. She was an expert in volcanology and geomechanics. In the mid-2360s, she was assigned to the USS Enterprise-D.

In 2365, Hildebrant, along with Ensigns Davies and Alans, and another scientist, Prixus, was chosen by Acting Ensign Wesley Crusher for planetary mineral surveys. Crusher's team was tasked with solving the mystery of the geological instability of the Selcundi Drema sector planets. (TNG: "Pen Pals")

Hildebrant was played by Ann H. Gillespie.
The Star Trek Encyclopedia (4th ed., vol. 1, p. 336) spelled her name as Hildebrandt.
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