A microorganism from Mars, brought to Earth by a space probe, terrorizes passengers in a railroad office.
Ralph Meeker
Charlie
Stafford Morgan
Dr. Sorensen
John F. Goff
Jack Tiller
Carol Irene Newell
Jenny
George Buck Flower
Hank
Paul Bentzen
Dr. Farrell
John Alderman
Dr. Rogers
Ray Szmanda
The Official
Lawrence Ripp
The Guard
Harry Youstos
Alvin
