Marine biologist and aquarium caretaker who helps Kirk locate whales.
Kirk tells her of his mission and asks for the tracking frequency for the whales, later relying on her assistance to locate and retrieve them.
Gillian learns the whales have been released early and goes to Kirk for assistance. Gillian, Kirk, and McCoy rescue Chekov from a nearby hospital.
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Related entry on Wikidata (Q3106613), public domain (CC0).