actor		rôle/s
Ronald	Lacey {New Avengers}{Dr Who}{Blake's 7}{Indiana Jones}{Randall and Hopkirk}{Department S}{Jason King}{The Sweeney}	The Joker - Strange Young Man	Legacy of Death - Humbert Green	The Midas Touch - Hong Kong Harry
Alan	Lake {Dr Who}{Blake's 7}{The Saint}{Department S}{The Sweeney}	The House That Jack Built - H.M. Prisons officer	The Forget-Me-Knot - Karl
Dinsdale	Landen {New Avengers}{Dr Who}{Jason King}	All Done with Mirrors - Watney	Angels of Death - Coldstream
Sylvia	Langova	Dragonsfield - Lisa Strauss	The Mauritius Penny - Sheila Gray
David	Langton {The Champions}	The Mauritius Penny - Gerald Shelley	November Five - Major Swinburne	The £50,000 Breakfast - Sir James Arnell
Philip	Latham {Dr Who}{Dangerman}{The Professionals}{The Saint}{UFO}	The White Dwarf - Professor Cartright	Room without a View - Carter
Michael	Latimer {New Avengers}{The Professionals}{The Sweeney}	A Touch of Brimstone - Roger Winthrop, Lord Lakeham	The Positive Negative Man - Peter Haworth	Angels of Death - Reresby
Andrew	Laurence {Dangerman}	Murdersville - Williams	You'll Catch Your Death - Herrick
John	Laurie {Dad's Army}	Death of a Great Dane - Sir James Arnell	Brief for Murder - Jasper Lakin
		A Funny Thing Happened On The Way To The Station - Crewe	Pandora - Simon Henry Juniper
Jon	Laurimore {Dr Who}{The Prisoner}{Callan}{Space 1999}	Honey for the Prince - Ronny Westcott	Never, Never Say Die - NRU Security	The £50,000 Breakfast - Security Man
Geoff	L'Cise	Death Dispatch - Thug	The Gilded Cage - Gruber
John	Le Mesurier {Dangerman}{007}{Dad's Army}{Adam Adamant}{Jason King}	Mandrake - Dr Macombie	What the Butler Saw - Benson
Christopher	Lee {007}{Star Wars}{Indiana Jones}{Space 1999}	Never, Never Say Die - Professor Stone	The Interrogators - Colonel Mannering	Homicide and Old Lace - Professor Stone
John	Lee {Dr Who}{Dangerman}{The Champions}	The Bird Who Knew Too Much - Mark Pearson	The Forget-Me-Knot - Dr Soames
Richard	Leech {New Avengers}{Dr Who}{Dangerman}{The Saint}	Traitor in Zebra - Joe Franks	Dressed to Kill - Policeman
		Mission... Highly Improbable - Colonel Drew	Faces - Craig & Terrison
Ronald	Leigh-Hunt {New Avengers}{Dr Who}{Dangerman}{The Professionals}{Blake's 7}{The Saint}	Dragonsfield - Reddington	The Cybernauts - Lambert	Three Handed Game - General
Philip	Levene	Who's Who??? - Daffodil	Philip Levene was a regular script writer and editor for most of the series' life - this was his only cameo appearance
Helen	Lindsay {Police Surgeon}	Nightmare - Faith Braintree	Brief for Murder - Barbara Kingston
Barry	Linehan {The Saint}{Adam Adamant}{Dad's Army}	The Golden Fleece - Sgt. Major Wright	Get-A-Way! - Magnus
George	Little {The Professionals} {Dr Who} {The Saint}	The Removal Men - Waiter	Man with Two Shadows - Sigi
Jeremy	Lloyd {Callan}	From Venus with Love - Bertram Smith	Thingumajig - The Rev. Teddy Shelley	He also appeared as Carruthers in the short-lived theatre production of "The Avengers"
Sue	Lloyd {The Saint} {Pink Panther} {The Sweeney} {Jason King} {Randall and Hopkirk} {Department S}	A Surfeit of H₂O - Joyce Jason	She also appeared as Hannah Wild in the short-lived theatre production of "The Avengers"
Philip	Locke {Dr Who}{007}{The Saint}{Department S}{The Champions}	The Frighteners - Moxon	Mandrake - Roy Hopkins	From Venus with Love - Dr Henry Primble
David	Lodge {Carry On..}{Pink Panther}{The Sweeney}{Randall and Hopkirk}{The Saint}{The Champions}	Epic - Policeman	Fog - Maskell	His scenes as master cutler Maskell were cut from the final print of "Fog"
Terence	Lodge {Dr Who}{Jason King}	Man with Two Shadows - Borowski	The Wringer - The Wringer
Matthew	Long {The Professionals} {New Avengers} {The Sweeney}	Take Me to Your Leader - Holland	Cat Amongst the Pigeons - Turner
Terence	Longdon {New Avengers} {Dangerman} {Carry On..}	Get-A-Way! - George Neville	Obsession - Commander East
William	Lucas {Dr Who}{Dangerman}{The Saint}	Death's Door - Stapley	Invasion of the Earthmen - Brett
Joanna	Lumley	"The New Avengers" (all episodes) - Purdey