American actor (born 1951) who played Dr Gillian Taylor, the twentieth-century whale biologist who helps Kirk and Spock and travels to the future, in Star Trek IV: The Voyage Home.
Catherine Hicks (born 1951) is an American actor who earned an Emmy nomination for playing Marilyn Monroe in a 1980 television film and later starred in the long-running family drama 7th Heaven.
In Star Trek IV: The Voyage Home (1986) she plays Dr Gillian Taylor, assistant director of the Cetacean Institute near San Francisco and guardian of the humpback whales George and Gracie. Gillian meets Kirk and Spock when they arrive from the twenty-third century in search of whales.
At the end of the film she insists on accompanying the whales to the future, where she joins a science vessel. It is her only Star Trek appearance, in one of the most popular films of the series.