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7.5

10 Reviews

Professor Emil Keller has created a machine that can pacify even the most dangerous of criminals. But when the Doctor and Jo arrive at Stangmoor Prison for a demonstration, things start to go horribly wrong - especially when they discover that the Doctor's old enemy the Master is responsible for the machine.

Cast

  • Jon Pertwee

  • Katy Manning

  • Nicholas Courtney

  • Richard Franklin

  • John Levene

  • Roger Delgado

  • Pik-Sen Lim

  • Raymond Westwell

  • Michael Sheard

  • Simon Lack

  • Fernanda Marlowe

  • Neil McCarthy

  • Clive Scott

  • Roy Purcell

  • Eric Mason

  • Bill Matthews

  • Barry Wade

  • Dave Carter

  • Martin Gordon

  • William Marlowe

  • Hayden Jones

  • Kristopher Kum

  • Tommy Duggan

  • David Calderisi

  • Patrick Godfrey

  • Johnny Barrs

  • Matthew Walters

  • Timothy Combe

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