The Secret Service:
To Catch A Spy
Season 1, Episode 3
To catch a spy
Original Transmission 5 October 1969
Written by Pat Dunlop
Directed by Brian Heard
Production Order
The Feathered Spies
Last Train To Bufflers Halt
Broadcast Order
A Question Of Miracles
The Feathered Spies

The third episode in The Secret Service, To Catch a Spy is about a man sentenced to a long term of imprisonment for spying. He escapes and hides out with the sympathetic Sir Humphrey Burton, a man of considerable influence. But the fugitive is a threat and must be apprehended, otherwise he could cause the total collapse of the British defence system.

It takes Father Unwin's sensitive approach to get into Sir Humphrey's house, and there the minimized Matthew uncovers a plot to smuggle the spy out of the country by submarine.

Armed with this information Father Unwin arranges for the submarine to be scared off and survives a dangerous confrontation with a gun-wielding Sir Humphrey.

Regular Voice CastEdit

Guest CastEdit

Cast and CrewEdit

Produced by
David Lane

Format by
Gerry and Sylvia Anderson

Production Supervisor
Des Saunders

Supervising Visual Effects
Derek Meddings

Directed by
Brian Heard

Characters Created by
Sylvia Anderson

Music Composed and Directed by
Barry Gray

Vocal Title Music by
The Mike Sammes Singers

Teleplay by
Pat Dunlop

Lighting Cameraman
Julien Lugrin

Script Editor
Tony Barwick

Supervising Editor
Alan Killick

Art Director
Keith Wilson

Production Manager
Frank Hollands

Puppet Co-Ordinator
Mary Turner

Puppet Operators
Christine Glanville
Rowena White

Iris Richens

Tim Cooksey
Plugg Shutt

Film Editor
Norman A. Cole

Camera Operator
Derek Black

Assistant Director
Geoff Pittman

Dialogue Synchronisation
John Drake

Senior Visual Effects Director
Jimmy Elliott

Visual Effects Designer
Mike Trim

Peter Aston

Property Master
Peter Holmes

Visual Effects Unit

Alan Berry

Lighting Cameraman
Eric Cross

Camera Operator
Mike Rainer

Location Unit

Ken Turner

Lighting Cameraman
Ted Wooldridge

Camera Operator
Noel Rowlands

Gren Nott

Supervising Sound Editor
Peter Pennell

Sound Editor
Tony Roper

Music Editor
George Randall

Sound Re-Recording
Anvil Films Limited

Character Voices
Keith Alexander
Sylvia Anderson
Gary Files
David Healy
Stanley Unwin
Jeremy Wilkin

Executive Producer
Reg Hill

Equipment UsedEdit

  • Foreign Submarine


  • Sir Humphrey's House