The Invisible Enemy (TV story)

Synopsis
A rocket with three men are near complete their mission to Titan Base until a course change puts the rocket in the path of a strange cloud in space. By the timme they have arrived, they have changed and serve a sentient virus which threatens the galaxy. When the TARDIS picks up an emergency message, it flies into the cloud, infecting the Doctor himself. To save himself and others, the Doctor must undertake a dangerous journey.

Cast

 * The Doctor- Tom Baker
 * Leela- Louise Jameson
 * Voice of K9- John Leeson
 * Lowe- Michael Sheard
 * Safran- Brian Grellis
 * Meeker- Edmund Pegge
 * Silvey- Jay Neill
 * Crewman- Anthony Rowlands
 * Nucleus- John Scott Martin
 * Nucleus Voice- John Leeson
 * Professor Marius- Frederick Jaeger
 * Parsons- Roy Herrick
 * Cruikshank- Roderick Smith
 * Marius' Nurse- Elizabeth Norman
 * Reception Nurse- Nell Curran
 * Opthalmologist- Jim McManus
 * Hedge- Kenneth Waller
 * Medic- Pat Gorman

Crew

 * Assistant Floor Manager- Christabel Albery
 * Film Cameraman- Nick Allder
 * Writer- Bob Baker
 * Studio Lighting- Brian Clemett
 * Assistant Floor Manager- Tony Garrick
 * Director- Derrick Goodwin
 * Title Music- Ron Grainer
 * Visual Effects- Tony Harding, Ian Scoones
 * Script Editor- Robert Holmes
 * Costumes- Raymond Hughes
 * Film Editor- Glenn Hyde
 * Writer- Dave Martin
 * Studio Sound- Michael McCarthy
 * Special Sounds- Dick Mills
 * Production Unit Manager- John Nathan-Turner
 * Designer- Barry Newbery
 * Incidental Music- Dudley Simpson
 * Production Assistant- Norman Stewart
 * Producer- Graham Williams
 * Make-Up- Maureen Winslade

Ratings

 * Episode 1: 8.6 Million
 * Episode 2: 7.3 Million
 * Episode 3: 7.5 Million
 * Episode 4: 8.3 Million

Myths
To be added.

Location Filming
To be added.

Continuity
To be added.

Discontinuity
To be added.

DVD, Video, and Audio releases
To be added.