Drexel Jerome Lewis Bixby (January 11, 1923 Los Angeles, California – April 28, 1998 San Bernardino, California) was a American short story writer, editor and scriptwriter, best known for his comparatively small output in science fiction. He also wrote many westerns and used the pseudonyms D. B. Lewis, Harry Neal, Albert Russell, J. Russell, M. St. Vivant, Thornecliff Herrick and Alger Rome (for one collaboration with Algis Budrys).
He was the editor of Planet Stories from Summer 1950 to July 1951; and editor of Two Complete Science Adventure Novels from Winter 1950 to July 1951.
Probably his best-known work is the Star Trek: The Original Series 1967 episode "Mirror, Mirror", which introduced the series' concept of the Mirror Universe, also "Requiem for Methuselah" (Episode 76, Season 3:) about 'Flint' a 6,000 year old man. He also wrote the short story "It's a Good Life" (1953), adapted as a teleplay for The Twilight Zone by Rod Serling and parodied in the Simpsons Halloween episode "Treehouse of Horror II". His 1968 Star Trek episode "Day of the Dove" is also much respected by fans of science fiction. Bixby also conceived and co-wrote the 1966 film Fantastic Voyage, later novelized by Isaac Asimov.
Jerome Bixby's last work, a screenplay The Man From Earth, was conceived in the early 1960s and completed on his deathbed in April 1998. In 2007, Jerome Bixby's The Man From Earth (as it is now called) was turned into an independent motion picture executive produced by his son Emerson Bixby, directed by Richard Schenkman and starring David Lee Smith, William Katt, Richard Riehle, Tony Todd, Annika Peterson, Alexis Thorpe, Ellen Crawford and John Billingsley.
Bixby wrote the original screenplay for 1958's It! The Terror from Beyond Space, which was the inspiration for 1979's Alien. The Star Trek: Deep Space Nine seventh season (1999) Mirror Universe episode, "The Emperor's New Cloak," is dedicated to Bixby's memory.