On screen
Cast
9 credited performers
John Laurie
Mr Potter
Hector Ross
Inspector Greenway
Artwork unavailable
Molly Raynor
Character not listed
Artwork unavailable
Catherine Campbell
Character not listed
Jack Stewart
Character not listed
Charles Lloyd Pack
Hotel Manager
Artwork unavailable
Derek Sidney
Character not listed
Artwork unavailable
Peter Bathurst
Colonel
Artwork unavailable
Vernon Gibb
Character not listed