Doctor Who The Invisible Enemy: Part One (Season 15, Episode 5)
TV-PG
TV Episode | 23 min | Adventure, Drama, Family

Primary photo for The Invisible Enemy: Part One

Doctor Who

The Invisible Enemy: Part One (Season 15, Episode 5)

TV-PG

TV Episode | 23 min | Adventure, Drama, Family

In the year 5000 AD a three-man crew arrive on the planet Titan but unknowingly become hosts for an alien virus that turns them hostile. Picking up a distress signal in the Tardis, the Doctor and Leela head to the planet to investigate.

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Cast	+ Add Cast
11 cast members

Name	Known for
Tom Baker Doctor Who Doctor Who See fewer	Doctor Who (1963)
Louise Jameson Leela Leela See fewer	Doctor Who (1963)
Michael Sheard Lowe Lowe See fewer	Star Wars: Episode V - The Empire Strikes Back (1980)
Brian Grellis Safran Safran See fewer	Doctor Who (1963)
Edmund Pegge Meeker Meeker See fewer	Gems (1985)
Jay Neill Silvey Silvey See fewer	The Onedin Line (1971)
Anthony Rowlands Crewman Crewman See fewer	Big Zapper (1973)
John Leeson Nucleus Voice (voice) Nucleus Voice (voice) See fewer	Doctor Who (1963)
Harry Fielder Titan Base Crewman (uncredited) Titan Base Crewman (uncredited) See fewer	Doctor Who (1963)
Ken Sedd Bi-Al Member (uncredited) Bi-Al Member (uncredited) See fewer	Softly Softly (1966)
Cy Town Extra (uncredited) Extra (uncredited) See fewer	Moonbase 3 (1973)