- L -
- Ladkin, Margaret:
- 1963 St. Alban's Rose of Persia: Sultana Zubeydeh
- Ladkin, Robert:
- 1963 St. Alban's Rose of Persia: Yassur
- Laflin, Mark:
- The Church Music of Sir Arthur Sullivan: Conductor
- Lambert, Patricia:
- 1966 BBC Mikado: Pitti-Sing
- Lamond, Toni:
- 1994 Essgee Entertainment Pirates: Ruth (Australia)
- Landen, Dinsdale:
- 1966 BBC Yeomen: Colonel Fairfax (dialogue)
- 1966 BBC Gondoliers: Marco (dialogue)
- 1966 BBC Grand Duke: Ernest Dummkopf (dialogue)
- Landis, Helen:
- 1966 Michael Sammes Pinafore: Soloist
- 1966 Michael Sammes Pirates: Soloist
- 1966 Michael Sammes Iolanthe: Soloist
- 1966 Michael Sammes Mikado: Soloist
- 1966 Michael Sammes Yeomen: Soloist
- 1972 G&S For All Pinafore: Little Buttercup
- 1972 G&S For All Pirates: Ruth
- 1972 G&S For All Iolanthe: Queen of the Fairies
- 1972 G&S For All Mikado: Katisha
- 1972 G&S For All Ruddigore: Dame Hannah
- 1972 G&S For All Yeomen: Dame Carruthers
- 1972 G&S For All Gondoliers: Duchess of Plaza-Toro
- 1972 Sullivan: Soloist
- Landis, John:
- 1963 Lyric Theater Company Utopia: Conductor
- 1964 Lyric Theater Company Mountebanks: Conductor
- 1965 Lyric Theater Company Grand Duke: Conductor
- Landor, John:
- 1993 Karaoke Gilbert and Sullivan: Conductor
- Landsman, Liz:
- 2000 Prince Consort Haddon Hall: Deborah
- Langdon, Michael:
- 1972 BBC Gondoliers Video: Don Alhambra
- Langridge, Philip:
- 1989 BBC Ida: Hilarion
- 1989 BBC Yeomen: Colonel Fairfax
- Langton, Melissa:
- 1994 Essgee Entertainment Pirates: A Daughter
- 1997 Essgee Entertainment Pinafore: A Relative
- Lansbury, Angela:
- 1983 Papp's Pirates: Ruth (movie)
- Lattimore, Jonita:
- 1993 H.M.S. Gilbert & Sullivan: Soloist
- Lawlor, Thomas:
- 1964 D'Oyly Carte Yeomen: Second Yeoman
- 1966 D'Oyly Carte Mikado Film: Pish-Tush
- 1970 Songs and Snatches: Soloist
- 1971 D'Oyly Carte Pinafore: Captain Corcoran
- 1972 G&S For All Cox & Box: Bouncer
- 1982 Brent Walker Cox & Box: Bouncer
- 1987 New Sadler's Wells Pinafore: Dick Deadeye
- 1987 New Sadler's Wells Ruddigore: Sir Roderic Murgatroyd
- Lawrence, Ashley:
- 1989 BBC Patience: Conductor
- Lawson, Catherine:
- 1966 BBC Sorcerer: Mrs. Partlet (music)
- Lawson, Ian:
- 1986 Prince Consort Contrabandista: Officer
- 2000 Prince Consort Haddon Hall: Rupert Vernon
- Lawson, Winifred:
- 1924 D'Oyly Carte Ida: Princess Ida
- 1927 D'Oyly Carte Gondoliers: Gianettta
- 1927 D'Oyly Carte Trial: The Plaintiff
- 1928 D'Oyly Carte Yeomen: Elsie Maynard
- 1929 D'Oyly Carte Iolanthe: Phyllis
- 1930 D'Oyly Carte Patience: Patience
- Lee, Simon:
- 1995 Hot Mikado: Music Director
- Leask, Margaret:
- 1982 Prince Consort Emerald Isle: Molly O'Grady
- 1983 Prince Consort Beauty Stone: Joan
- 1985 Prince Consort Rose of Persia: Heart's Desire
- LeCroy-Florin, Kemper:
- 2007 Ohio Light Opera Gondoliers: Gianetta
- Lefebvre, Rolf:
- 1966 BBC Yeomen: Sir Richard Cholmondely (dialogue)
- 1966 BBC Utopia: Scaphio (dialogue)
- Legris, Justin:
- 2003 Ohio Light Opera Grand Duke: Costumier
- Lehman, Ross:
- 1995 Hot Mikado: Ko-Ko
- Lemke, Roger:
- 1989 Opera Australia Gondoliers: Giuseppe
- Leonard, Patricia:
- 1974 D'Oyly Carte Iolanthe: Leila
- 1976 D'Oyly Carte Grand Duke:Elsa
- 1979 D'Oyly Carte Yeomen: Dame Carruthers
- 1982 D'Oyly Carte: The Last Night: Soloist
- 1982 Gilbert & Sullivan's Greatest Hits (Video): Soloist
- Lesley-Green, Carol:
- 1993 New D'Oyly Carte Yeomen: Kate
- Lewis, Bertha:
- 1922 D'Oyly Carte Pinafore: Little Buttercup (part)
- 1924 D'Oyly Carte Ruddigore: Dame Hannah
- 1924 D'Oyly Carte Ida: Lady Blanche
- 1926 D'Oyly Carte Mikado Film: Katisha
- 1926 D'Oyly Carte Mikado BBC Broadcast: Katisha
- 1926 D'Oyly Carte Mikado: Katisha
- 1927 D'Oyly Carte Gondoliers: Duchess of Plaza-Toro
- 1929 D'Oyly Carte Iolanthe: Queen of the Fairies
- 1930 D'Oyly Carte Patience: Lady Jane
- 1930 D'Oyly Carte Pinafore: Little Buttercup
- 1931 D'Oyly Carte Pirates: Ruth
- Lewis, Eddie:
- 1972 Fulham Light Operatic Society Thespis: Thespis
- Lewis, Richard:
- 1957 Sargent/EMI Mikado: Nanki-Poo
- 1957 Sargent/EMI Gondoliers: Marco
- 1958 Sargent/EMI Yeomen: Colonel Fairfax
- 1958 Sargent/EMI Pinafore: Ralph Rackstraw
- 1961 Sargent/EMI Pirates: Frederic
- 1961 Sargent/EMI Trial: The Defendant
- 1963 Sargent/EMI Ruddigore: Richard Dauntless
- Lilley, Alice:
- 1930 Columbia Mikado: Yum-Yum
- 1931 Columbia Gondoliers: Casilda
- 1931 Columbia Yeomen: Elsie Maynard; Kate
- 1931 Columbia Iolanthe: Phyllis
- Lilley, Barbara:
- 1976 D'Oyly Carte Grand Duke: Princess of Monte Carlo
- 1977 D'Oyly Carte Gondoliers: Gianetta
- 1979 D'Oyly Carte Yeomen: Elsie Maynard
- Linden, Anne:
- 1981 Stratford Festival Pinafore: Hebe
- Little, Ruth:
- 1962 World Record Club Gondoliers: Tessa
- Livingstone, Laureen:
- 1972 BBC Gondoliers Video: Gianetta
- 1974 BBC Yeomen Video: Kate
- 1978 City of London Festival Yeomen Video: Elsie Maynard
- Llewellyn, William:
- 1962 The Best of Gilbert and Sullivan, Volume 2: Conductor
- Lloyd, Adam:
- 2007 Ohio Light Opera Gondoliers: Luiz
- Lloyd, Anne:
- 1959 A Child's Introduction to Gilbert and Sullivan: Soloist
- Lloyd, Robert:
- 1993 Marriner/Philips Yeomen: Sir Richard Cholmondely
- Lloyd-Jones, Beti:
- 1961 D'Oyly Carte Patience: Lady Saphir
- 1976 D'Oyly Carte Grand Duke: Bertha
- 1977 D'Oyly Carte Gondoliers: Inez
- 1982 D'Oyly Carte: The Last Night: Soloist
- Lloyd-Jones, David:
- 1972 BBC Gondoliers Video: Conductor
- 1974 BBC Yeomen Video: Conductor
- 1978 City of London Festival Yeomen Video: Conductor
- 2009 Chandos Ivanhoe: Conductor
- Lochtie, Bruce:
- 1988 Gilbert and Sullivan with Band and Voice: Soloist
- Lovat, Judith:
- 1985 Prince Consort Rose of Persia: Blush-of-Morning
- Lovelock, Wendy:
- 1966 BBC Pirates: Kate (dialogue)
- 1966 BBC Mikado: Peep-Bo (dialogue)
- 1966 BBC Ruddigore: Ruth (dialogue)
- 1966 BBC Utopia: Princess Kalyba (dialogue)
- Lowry, Elizabeth:
- 1972 G&S For All Pirates: Isabel
- Ludlow, Francis:
- 1907 Pathé Yeomen: Jack Point
- 1907 Pathé Yeomen: 1st thru 4th Yeomen
- Ludlow, Howard:
- 1993 New D'Oyly Carte Yeomen: Third Yeoman
- Lufton, Mark:
- 1982 Brent Walker Sorcerer: Notary
- Lukas, Nigil:
- 1954 Allegro-Royal Mikado: Conductor of re-issue
- 1954 National Musicale Pinafore: Conductor of re-issue
- 1954 National Musicale Pirates: Conductor of re-issue
- 196-? Gilbert and Sullivan Highlights: Conductor
- Lumsden, Norman:
- 1966 BBC Ruddigore: Old Adam (music)
- Lundberg, Kenneth:
- 1965 Los Angeles Savoy-Artes Utopia: Sir Bailey Barre
- Lundgren, Karen:
- 1973 UMGASS Grand Duke: Julia Jellicoe
- Luxon, Benjamin:
- 1985 Here's a How-De-Do! A Gilbert & Sullivan Gala: Soloist
- Lyle, David:
- 1982 Prince Consort Emerald Isle: Conductor
- 1983 Prince Consort Beauty Stone: Conductor
- 1985 Prince Consort Rose of Persia: Conductor
- 1986 Prince Consort Contrabandista: Conductor
- 1989 Prince Consort Ivanhoe: Conductor
- 2000 Prince Consort Haddon Hall: Conductor
- Lyon, Peter:
- 1982 D'Oyly Carte: The Last Night: Soloist
- Lytton, Henry:
- [See also Henry Lytton's Farewell]
- 1924 D'Oyly Carte Ida: King Gama
- 1926 D'Oyly Carte Mikado Film: Ko-Ko
- 1926 D'Oyly Carte Mikado BBC Broadcast: Ko-Ko
- 1926 D'Oyly Carte Mikado: Ko-Ko
- 1927 D'Oyly Carte Gondoliers: Duke of Plaza-Toro
- 1930 D'Oyly Carte Pinafore: Sir Joseph Porter
- 1932 D'Oyly Carte Ida: King Gama
