The Expert The Unknown Factor (Season 1, Episode 1)
TV Episode | Crime, Drama

Primary photo for The Unknown Factor

The Expert

The Unknown Factor (Season 1, Episode 1)

TV Episode | Crime, Drama

Three bullets, a dead man, and £50,000 in insurance. Troubles arise when Dr. Hardy discovers the Unknown Factor.

Director

Gerard Glaister

Writers

N.J. Crisp (creator) | Gerard Glaister (creator)

Producer

Gerard Glaister

Production Designer

See all filmmakers & crew (4)

Edit Released

Updated Jul 5, 1968

Release date

Jul 5, 1968 (United Kingdom)

Contacts

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Cast	+ Add Cast
12 cast members

Name	Known for
Marius Goring Prof. John Hardy Prof. John Hardy See fewer	The Red Shoes (1948)
Ann Morrish Dr. Jo Hardy Dr. Jo Hardy See fewer	Encounter (1952)
Sally Nesbitt Jane Carter Jane Carter See fewer	The Avengers (1961)
Victor Winding Det. Chief Insp. Fleming Det. Chief Insp. Fleming See fewer	Doctor Who (1963)
Michael Farnsworth Det. Sgt. Ashe Det. Sgt. Ashe See fewer	Conflict (1966)
Denis Carey Barrington Barrington See fewer	The Day of the Jackal (1973)
Michael Elwyn Colin Wayman Colin Wayman See fewer	The Iron Lady (2011)
John Forbes-Robertson Martin Martin See fewer	Lifeforce (1985)
Wendy Hall Lisa Reinhold Lisa Reinhold See fewer	Doomwatch (1970)
Barbara New Mrs. Prior Mrs. Prior See fewer	You Rang, M'Lord? (1988)
Gerald Tarrant Dr. Jacobs Dr. Jacobs See fewer	The Breaking of Bumbo (1970)
Valerie White Mrs. Wayman Mrs. Wayman See fewer	The Halfway House (1944)

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