Trillian
Fictional character
Tricia Marie McMillan, also known as Trillian Astra, is a fictional character from Douglas Adams' series The Hitchhiker's Guide to the Galaxy. She is most commonly referred to simply as "Trillian", a modification of her birth name, which she... Wikipedia
Played by: Sandra Dickinson
Fictional universes: Star Trek and The Hitchhiker's Guide to the Galaxy
TV show: The Hitchhiker's Guide to the Galaxy
First appearance: Fit the Second (radio)
Species: Human