A little voice told me!
Parish priest Father Stanley Unwin lives a double life as a spy working for the BISHOP (British Intelligence Service Headquarters Operation Priest) Using his Minimizer, a device he inherited from scientist and close friend Professor Humbolt, he can shrink any person or object to the third of their size. He mainly uses it on Matthew Harding, the Vicarage gardener who is in fact an agent for the BISHOP, to reach places undetected. Driving Gabriel, a yellow 1917 Model T Ford, he uses his own dialect, called unwinese, to confuse and get out of trouble.
The Secret Service in stats
Episodes
13
episodes
1
series
338
minutes
First aired
Sunday, September 21, 1969
Last aired
Sunday, December 14, 1969
Characters
131
characters
Gender
Male
124
Female
7
Types
Human (Adult)
129
Animal
2
7
voice artists
Characters voiced
Keith Alexander
51
Gary Files
28
Jeremy Wilkin
28
David Healy
11
Sylvia Anderson
5
David Graham
3
Stanley Unwin
1
People
66
People involved
6
Director
7
Teleplay
Gender
Male
58
Female
7
Mixed (group)
1