cast
John Steed	Patrick Macnee {regular}{New Avengers}{007}
Catherine Gale	Honor Blackman {regular}{007}{Dangerman}{Dr Who}{The Saint}
Captain George Jason	Warren Mitchell {regular}{Dangerman}{The Saint}{The Sweeney}
Major Ruse	Tenniel Evans {regular}{Dr Who}{Randall and Hopkirk}{The Saint}
Sgt. Major Wright	Barry Linehan {regular}{Adam Adamant}{Dad's Army}{The Saint}
Mr. Lo	Robert Lee {The Professionals}{Dangerman}{Jason King}
Mrs. Kwan	Yu Ling {Dangerman}{The Prisoner}
Esther Jones	Lisa Peake {regular}
Private Holmes	Ronald Wilson {regular}{The Saint}
Jimmy Jones	Michael Hawkins {regular}{Police Surgeon}{The Saint}
Hostess	Yvette Herries
Hostess	?
Diner	?
Hostess	?
Hostess	?
Gangster	Val Musetti?
Gangster	?
Diner	?
Diner	?
Soldier	?
Soldier	?
Soldier	?
Soldier	?

crew
written by	Roger Marshall {The Professionals} {The Sweeney} and Phyllis Norman
story editor	Richard Bates
theme by	Johnny Dankworth
designed by	Anne Spavin
producer	John Bryce
directed by	Peter Hammond
Floor Manager	Harry Lock
Stage Manager	Shirley Cleghorn
Production Assistant	Christine Thomas
P.A. Timer	-
Technical Supervisor	Bob Godfrey
Lighting Supervisor	Peter Kew
Senior Cameraman	Mike Baldock
Sound Supervisor	Mike Roberts
Vision Mixer	Del Randall
Wardrobe Supervisor	Ambren Garland
Make-Up Supervisor	Lee Halls
an ABC Production

The script mentions "+ 10 Extras" but I have spotted eleven.

The floor manager, Harry Lock, is listed in the script as Harry Locke. The vision mixer, Del Randall, is listed as Del Randell.

The Avengers

Series 3, 1963-4 - Episode 4