| Cast | |||
|---|---|---|---|
| Colin Baker |  | The Doctor |  |
| Bonnie Langford |  | Melanie | |
| Derek Benfield |  | John Hallam | |
| Michael Chance | | Dr Wallace | |
| Keith Drinkel |  | Henry Hallam | |
| Ian Fairburn | | Professor David Munro | |
| Rhiannon Meades | | Rachel | |
| Jillie Meers |  | Mrs McGregor | |
| Production Team | |||
|---|---|---|---|
| Alison Lawson | | Writer | |
| Gary Russell |  | Director | |
| ERS | | Sound | |
| Russell Stone | | Music | |
| Lee Binding | | Cover Art | |
Home Region:
Marco Polo: The Roof of the World premiered on BBC One in 1964 at 5:15pm, watched by 9.40 million viewers.
The Seeds of Death: Episode Five premiered on BBC One in 1969 at 5:14pm, watched by 7.60 million viewers.
The Sontaran Experiment: Part One premiered on BBC One in 1975 at 5:30pm, watched by 11.00 million viewers.
The Visitation: Part Three premiered on BBC One (Not Wales) in 1982 at 6:57pm, watched by 9.90 million viewers.
Terminus: Part Three premiered on BBC One in 1983 at 6:54pm, watched by 6.50 million viewers.
Steve Spiers is 54 today - credited as Strickland in Aliens of London / World War Three
Nigel Planer is 66 today - 2 credits, including Vorgenson in Doctor Who Live(Stage)
Judy Cornwell is 79 today - credited as Maddy in Paradise Towers
Bridget Turner (died 2014 aged 75) would be 80 today - credited as Alice Cassini in Gridlock
Sheila Hancock is 86 today - credited as Helen A. in The Happiness Patrol
Nicholas Courtney (died 2011 aged 81) - 48 credits, including Brigadier Lethbridge-Stewart in The Three Doctors
Nicholas Pennell (died 1995 aged 56) - credited as Winton in Colony In Space
Peter R. Newman (died 1975 aged 48) - credited as Writer for The Sensorites
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