Sci-Fi Adventure Drama
After an encounter with the Master, an airline stewardess named Tegan Jovanka becomes an unwitting stowaway aboard the TARDIS as it travels to the planet Logopolis. There, the Doctor discovers that the Master's interference with the Logopolitans' advanced mathematics has unleashed a wave of entropy which threatens to consume the entire universe.
Directed by
Peter Grimwade
Written by
Christopher H. Bidmead
Tom Baker
The Doctor
Peter Davison
The Doctor
Tom Georgeson
Detective Inspector
John Fraser
The Monitor
Valentine Dyall
The Black Guardian (archive footage)
Mary Tamm
Romana (I) (archive footage)
Louise Jameson
Leela (archive footage)
Elisabeth Sladen
Sarah Jane Smith (archive footage)
Bruce Purchase
The Captain (archive footage)
Lalla Ward
Romana (II) (archive footage)
Anthony Ainley
The Master
Nicholas Courtney
Brigadier Lethbridge-Stewart (archive footage)
Janet Fielding
Tegan Jovanka
Ian Marter
Harry Sullivan (archive footage)
Matthew Waterhouse
Adric
Sarah Sutton
Nyssa
Michael Wisher
Davros (archive footage)
Peter Pratt
The Master (archive footage)
Delore Whiteman
Aunt Vanessa
Christopher Hurst
Security Guard
Adrian Gibbs
The Watcher (uncredited)

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