Science Fiction / Drama / Adventure /

Score: 87%( 6 votes )

Overview: The Doctor and UNIT investigate a deadly infection lurking underneath the Welsh mining town of Llanfairfach. It's an adventure that will change Jo Grant's life forever...

Cast:

Jon Pertwee
The Doctor

Katy Manning
Jo Grant

Nicholas Courtney
Brigadier Lethbridge-Stewart

John Levene
Sergeant Benton

Richard Franklin
Captain Mike Yates

Stewart Bevan
Cliff Jones

Jerome Willis
Stevens

Tony Adams
Elgin

Ben Howard
Hinks

Mostyn Evans
Dai Evans

Talfryn Thomas
Dave

Roy Evans
Bert

Mitzi McKenzie
Nancy

Ray Handy
Milkman

John Scott Martin
Hughes

John Rolfe
Fell

John Dearth
BOSS (voice)

Richard Beale
Minister of Ecology

Jean Burgess
Cleaner

Brian Justice
Yates' Guard

Terry Walsh
Guard

Roy Skelton
James