A team of scientists search for the origin and purpose of a mysterious capsule found on a building site.
Professor Bernard Quatermass
Dr. Matthew Roney
Captain Potter
Barbara Judd
Colonel James Breen
Sergeant
Corporal Gibson
First Private
Second Private
Private Secretary to the Minister, Private Secretary
James Fullalove
Sladden
The Minister, Minister
Police Inspector
Private West
News Editor
Vicar