Castrovalva
| Category | TV Episode |
| Genre | Adventure, Drama, Science Fiction |
| Country | United Kingdom |
| Premiere | 1982-01-04 |
| Cast | Peter Davison (as The Doctor), Matthew Waterhouse (as Adric), Sarah Sutton (as Nyssa), Janet Fielding (as Tegan Jovanka), Anthony Ainley (as The Master / The Portreeve), Dallas Cavell (as Head of Security), Frank Wylie (as Ruther), Michael Sheard (as Mergrave), Derek Waring (as Shardovan), Souska John (as Child) |
| Director | Fiona Cumming |
| Incidental Music Composer | Paddy Kingsland |
| Producer | John Nathan-Turner |
| Production Company | British Broadcasting Corporation (BBC) |
| Script Editor | Eric Saward |
| Writer | Christopher H. Bidmead |
| Links | http://www.bbc.co.uk/doctorwho/classic/episodeguide/castrovalva/ · https://en.wikipedia.org/wiki/Castrovalva_(Doctor_Who) · Part One · Part Two · Part Three · Part Four |
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