Ronald Allen credited as playing...
Ralph Cornish
- Brig. Alastair Gordon Lethbridge-Stewart: I think the general's a bit overwrought.
- Prof. Ralph Cornish: I think he's insane.
- [first lines]
- Control Room Assistant: Large unidentified object converting with Mars Probe 7 on collision course. Estimated speed seven thousand miles per hour, but decreasing.
- Prof. Ralph Cornish: Doctor, a large unidentified object is approaching you on collision course. Take evasive action.