
Plot
The arrival of a mysterious comet heralds impending danger from enemies both old and new. As Ace helps the Doctor defend Earth, she is confronted with a dangerous question..."Doctor Who?"
Trailer
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Cast

Sylvester McCoy
The Doctor

Sophie Aldred
Ace

Anton Diffring
De Flores

Fiona Walker
Lady Peinforte

Gerard Murphy
Richard

Leslie French
Mathematician

Dolores Gray
Mrs Remington

David Banks
Cyber Leader

Mark Hardy
Cyber Lt.

Metin Yenal
Karl

Courtney Pine
Himself

Chris Chering
Skinhead 1

Symond Lawes
Skinhead 2