The Quatermass Experiment An Unidentified Species (Season 1, Episode 5)
TV Episode | Drama, Sci-Fi, Horror

Primary photo for An Unidentified Species

The Quatermass Experiment

An Unidentified Species (Season 1, Episode 5)

TV Episode | Drama, Sci-Fi, Horror

Quatermass picks up Carroon's trail and believes that the mixture of chemicals he has taken will accelerate his metamorphosis. Meanwhile, the killing starts - and Westminster Abbey a pulsating mass is revealed clinging to the building.

Writer

Nigel Kneale

Producer

Rudolph Cartier

See all filmmakers & crew (9)

Edit Released

Updated Aug 15, 1953

Release date

Aug 15, 1953 (United Kingdom)

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Cast	+ Add Cast
21 cast members

Name	Known for
Reginald Tate Professor Bernard Quatermass Professor Bernard Quatermass See fewer	The Inheritance (1947)
Isabel Dean Judith Carroon Judith Carroon See fewer	Sense and Sensibility (1971)
Duncan Lamont Victor Carroon Victor Carroon See fewer	Quatermass and the Pit (1967)
Hugh Kelly John Paterson John Paterson See fewer	The Quatermass Experiment (1953)
John Glen Dr. Gordon Briscoe Dr. Gordon Briscoe See fewer	The Quatermass Experiment (1953)
Ian Colin Detective-Inspector Lomax Detective-Inspector Lomax See fewer	The Quatermass Experiment (1953)
Frank Hawkins Detective-Sergeant Best Detective-Sergeant Best See fewer	King of the Underworld (1952)
Paul Whitsun-Jones James Fullalove James Fullalove See fewer	The Quatermass Experiment (1953)
Richard Cuthbert Chemist Chemist See fewer	Public Eye (1965)
Anthony Green Boy Boy See fewer	The Quatermass Experiment (1953)
Bernadette Milnes Usherette Usherette See fewer	The Elephant Man (1980)
Christie Humphrey Janet Janet See fewer	Armchair Theatre (1956)
John Stone Ted Ted See fewer	You Only Live Twice (1967)
Frank Atkinson Park Keeper Park Keeper See fewer	Great Expectations (1946)
Reginald Hearne Police Inspector Police Inspector See fewer	The Sicilians (1964)
Wilfrid Brambell A Drunk A Drunk See fewer	A Hard Day's Night (1964)
Tony Van Bridge Producer (as Tony van Bridge) Producer (as Tony van Bridge) See fewer	American Playhouse (1980)
Neal Arden Commentator Commentator See fewer	Life of St. Paul (1938)
Josephine Crombie Secretary Secretary See fewer	BBC Sunday-Night Theatre (1950)
John Kidd Sir Vernon Dodds Sir Vernon Dodds See fewer	The Other Man (1956)
Mary Malcolm Self - Television Announcer (voice) (uncredited) Self - Television Announcer (voice) (uncredited) See fewer	Pantomania, or It Was Never Like This (1955)