- M -
- Mackay, Rita:
- 1930 D'Oyly Carte Patience: Lady Ella
- Mackerras, Sir Charles:
- 197-? Music of Eric Coates etc.: Conductor
- 1974 Granada Television Trial: Conductor
- 1989 BBC Trial: Conductor
- 1989 BBC Pinafore: Conductor
- 1989 BBC Pirates: Conductor
- 1989 BBC Ida: Conductor
- 1989 BBC Mikado: Conductor
- 1989 BBC Ruddigore: Conductor
- 1989 BBC Yeomen: Conductor
- 1989 BBC Gondoliers: Conductor
- 1992 Mackerras/Telarc Mikado: Conductor
- 1993 Mackerras/Telarc Pirates: Conductor
- 1994 Mackerras/Telarc Pinafore: Conductor
- 1995 Mackerras/Telarc Yeomen: Conductor
- 1995 Mackerras/Telarc Trial: Conductor
- Mackie, David:
- 1995 The Best of G&S: Pianist
- Mackie, Neil:
- 1993 Marriner/Philips Yeomen: 1st Citizen; 1st Yeoman; Leonard Meryll
- Mackus, Boyd:
- 2001 Ohio Light Opera Utopia, Limited: Mr. Goldbury
- 2005 Ohio Light opera Sorcerer: Sir Marmaduke
- 2008 Ohio Light Opera Mikado: Pish-Tush
- MacLean, James:
- 1981 Stratford Festival Pinafore: Ralph Rackstraw
- Maconaghie, Fiona:
- 1989 Opera Australia Gondoliers: Casilda
- Magill, David:
- 1994 Royal Victorian Opera Happy Arcadia: Colin
- Magill, Lydia:
- 1994 Royal Victorian Opera Happy Arcadia: Daphne
- Mahoney, Robert:
- 1965 Los Angeles Savoy-Artes Utopia: Captain Fitzbattleaxe
- Maida, Anthony:
- 2001 Ohio Light Opera Utopia, Limited: Tarara
- Main, Fiona:
- 2000 Prince Consort Haddon Hall: Dorcas
- Main, Ross:
- 2000 Prince Consort Haddon Hall: Sing-Song Simeon
- Maisey, Susan:
- 1968 D'Oyly Carte Pirates: Isabel
- Mallofré, Jaume:
- 1994 El Mikado (Catalan): Man-Gho-Ta [sic]
- Manahan, Sheila:
- 1966 BBC Pinafore: Josephine (dialogue)
- 1966 BBC Utopia: Princess Zara (dialogue)
- Mandre, Joyce:
- 1989 BBC Pirates: Isabel
- 1989 BBC Ida: Chloe
- Mann, Collette:
- 2005 Opera Australia Pinafore: Little Buttercup
- Manners, Sheila:
- 1966 BBC Yeomen: Elsie Maynard (dialogue)
- Manuel, Paul:
- 1995 Hot Mikado: Nanki-Poo
- Marriner, Sir Neville:
- 1993 Gilbert & Sullivan Overtures: Conductor
- 1993 Marriner/Philips Yeomen: Conductor
- Marsh, Audrey:
- 1958 Al Goodman Pinafore: Little Buttercup; Hebe
- 1958 Al Goodman Mikado: Peep-Bo; Katisha
- 1959 A Child's Introduction to Gilbert and Sullivan: Soloist
- Marsh, Howard:
- 1932 Civic Light Opera of NY Pirates: Frederic
- 1932 Civic Light Opera of NY Mikado: Nanki-Poo
- Marshall, Peter:
- 1982 Brent Walker Pinaofore: Captain Corcoran
- Martin, Jessie Wright:
- 2000 Ohio Light Opera Princess Ida: Sacharissa
- 2005 Ohio Light opera Sorcerer: Mrs. Partlet
- 2007 Ohio Light Opera Gondoliers: Inez
- 2008 Ohio Light Opera Mikado: Pitti-Sing
- 2009 Ohio Light Opera Ruddigore: Dame Hannah
- Martin, Marian:
- 1957 D'Oyly Carte Pirates: Kate
- Marut, Stanley:
- 1970s Beaufort Opera Ivanhoe: Grand Master of the Templars
- Marks, Alfred:
- 1982 Brent Walker Yeomen: Wilfred Shadbolt
- Marx, Melinda:
- 1960 Bell Telephone Hour Mikado: Peep-Bo
- Marx, Groucho:
- 1960 Bell Telephone Hour Mikado: Ko-Ko
- Mason, Anne:
- 1982 Brent Walker Pinafore: Hebe
- Mason, Ralph:
- 1970 Songs and Snatches: Soloist
- 1971 D'Oyly Carte Pinafore: Ralph Rackstraw
- 1995 Mackerras/Telarc Yeomen: First/Third Yeoman
- Massell, Paul:
- 1981 Stratford Festival Pinafore: Bill Bobstay
- 1986 Stratford Festival Gondoliers: Giuseppe
- 1988 Stratford Festival Iolanthe: Strephon
- Masterson, Valerie:
- 1965 D'Oyly Carte Ida: Melissa, Sacharissa
- 1965 D'Oyly Carte Patience Video: Lady Ella
- 1965 A Gilbert and Sullivan Spectacular: Mabel, Yum-Yum (excerpts)
- 1966 D'Oyly Carte Sorcerer: Aline
- 1966 D'Oyly Carte Mikado Film: Yum-Yum
- 1968 D'Oyly Carte Pirates: Mabel
- 1969 Gilbert and Sullivan For All: Soloist
- 1971 D'Oyly Carte Pinafore: Josephine
- 1972 G&S For All Pinafore: Josephine
- 1972 G&S For All Pirates: Mabel
- 1972 G&S For All Mikado: Yum-Yum
- 1972 G&S For All Yeomen: Elsie Maynard
- 1973 D'Oyly Carte Mikado: Yum-Yum
- 1973 BBC-TV Mikado: Yum-Yum
- 1974 BBC Yeomen Video: Elsie Maynard
- 1983 Valerie Masterson & Robert Tear Sing Gilbert & Sullivan: Soloist
- 1989 BBC Pinafore: Josephine
- 1989 BBC Pirates: Mabel
- 1989 BBC Ida: Princess Ida
- 1989 BBC Mikado: Yum-Yum
- 1989 BBC Yeomen: Elsie Maynard
- 1997 The Best of Gilbert and Sullivan: Soloist
- Mastrodomenico, Carol:
- 1996 Royal Victorian Opera Eyes and No Eyes: Columbine
- Mattoon, Carroll:
- 1963 Lyric Theater Company Utopia: Lady Sophy
- 1964 Lyric Theater Company Mountebanks: Ultrice
- 1965 Lyric Theater Company Grand Duke: Baroness von Krakenfeldt
- Maunder, Stuart:
- 2005 Opera Australia Trial: Stage Director
- 2005 Opera Australia Pinafore: Stage Director
- 2006 Opera Australia Pirates: Stage Director
- Maxwell, Donald:
- 1993 New D'Oyly Carte Yeomen: Sir Richard Cholmondely
- 1995 Mackerras/Telarc Yeomen: Wilfred Shadbolt
- 1995 New D'Oyly Carte Patience: Colonel Calverley
- 1997 The Best of Gilbert and Sullivan: Soloist
- 2001 Carl Rosa Opera Mikado: The Mikado
- 2004 Chandos Cox and Box: Bouncer
- 2004 Chandos Trial by Jury: Learned Judge
- May, Elda:
- 1912 Edison Bell Mikado: Yum-Yum
- May, Jack:
- 1966 BBC Patience: Colonel Calverley (dialogue)
- 1966 BBC Princess Ida: King Hildebrand (dialogue)
- 1966 BBC Mikado: Pooh-Bah (dialogue)
- Maze, Janeene:
- 1987 Royal Victorian Opera Ages Ago: Rosa
- McArdle, Lisa:
- 1995 Essgee Entertainment Mikado: A Little Maid
- McBain, Col. D.:
- 1959 The British Bandstand: Music of G&S: Conductor
- McCafferty, Frances:
- 1989 Prince Consort Ivanhoe: Ulrica
- 1995 New D'Oyly Carte Patience: Lady Angela
- 2000 New D'Oyly Carte Pinafore: Little Buttercup
- McCormick, Danielle:
- 2005 Ohio Light opera Sorcerer: Aline
- McCulloch, Susan:
- 1993 Karaoke Gilbert and Sullivan: Soloist
- McDonald, Anne-Maree:
- 1988 Opera Australia Mikado: Yum-Yum
- McDonald, Keith:
- 1970s Beaufort Opera Ivanhoe: Wilfred, Knight of Ivanhoe
- McDonnell, Tom:
- 1978 City of London Festival Yeomen Video: Sir Richard Cholmondely
- 1982 Brent Walker Trial: Counsel
- 1982 Brent Walker Gondoliers: Giuseppe
- McDougall, Elsie:
- 1982 Brent Walker Trial: First Bridesmaid
- 1982 Brent Walker Ida: Chloe
- 1982 Brent Walker Ruddigore: Ruth
- McEvoy, Martin:
- 1989 BBC Utopia: Tarara
- McGreevy, Geraldine:
- 2009 Chandos Ivanhoe: Rebecca
- McGregor, Ali:
- 2005 Opera Australia Trial: The Plaintiff
- McGusty, Jenny:
- 1975 Black Mikado: Peep-Bo
- McHollan, George:
- 1989 Prince Consort Ivanhoe: De Bracy's Squire
- McKerrow, Pat:
- 2000 Prince Consort Haddon Hall: Nance
- McLaughlin, Marie:
- 1992 Mackerras/Telarc Mikado: Yum-Yum
- McLeod, Jane D.:
- 1986 UMGASS Pirates: Kate
- McMillan, John:
- 1965 Los Angeles Savoy-Artes Utopia: Mr. Blushington
- McMillan, Richard:
- 1984 Stratford Festival Mikado: Pooh-Bah
- 1986 Stratford Festival Gondoliers: Don Alhambra
- McNair, Sylvia:
- 1993 Marriner/Philips Yeomen: Elsie Maynard
- McVeigh, Tom:
- 2000 New D'Oyly Carte Pinafore: Captain Corcoran
- Meachum, Lucas:
- 2000 Ohio Light Opera Princess Ida: Scynthius
- 2001 Ohio Light Opera Utopia, Limited: Scaphio
- 2003 Ohio Light Opera Yeomen: Second Yeoman
- Meadows, Julia:
- 1988 Gilbert and Sullivan with Band and Voice: Soloist
- Megli, Katharina:
- 1988 Stratford Festival Iolanthe: Iolanthe
- Meister, Barbara:
- 1960 Bell Telephone Hour Mikado: Yum-Yum
- Melcher, Melanie:
- 2000 Ohio Light Opera Princess Ida: Lady Psyche
- Mellor, Alwyn:
- 1995 Mackerras/Telarc Yeomen: Elsie Maynard
- Melrose, Leigh:
- 2009 Chandos Ivanhoe: Isaac of York
- Merri, Judi:
- 1974 D'Oyly Carte Iolanthe: Iolanthe
- 1976 D'Oyly Carte Utopia: Princess Kalyba
- Merrill, William:
- 1993 Guinevere: Pianist
- Mersson, Boris:
- 1972 Concert Hall Mikado: Conductor
- Messier, Joanne:
- 1996 Royal Victorian Opera Eyes and No Eyes: Nicolette
- Mestres, Fulgenci:
- 1987 El Mikado (Spanish): Man-Gho-Ta [sic]
- Metcalfe, Jane:
- 1976 D'Oyly Carte Grand Duke: Lisa
- 1977 D'Oyly Carte Gondoliers: Tessa
- 1978 D'Oyly Carte Zoo: Eliza Smith
- 1979 D'Oyly Carte Yeomen: Phoebe Meryll
- Metzger, Derek:
- 1994 Essgee Entertainment Pirates: Major-General Stanley
- 1995 Essgee Entertainment Mikado: Nanki-Poo
- Meyer, Kn:
- 1995 Royal Victorian Opera Our Island Home: Mr. German Reed
- Mezoff, Carl:
- 1973 UMGASS Grand Duke: Viscount Mentone
- Michaels-Moore, Anthony:
- 1993 Marriner/Philips Yeomen: Second Citizen; Second Yeoman
- Michell, Keith:
- 1982 Brent Walker Pirates: Major-General Stanley
- 1982 Brent Walker Ruddigore: Robin Oakapple
- 1982 Brent Walker Gondoliers: Don Alhambra
- Michelmore, Dorothy:
- 1970s Pearl/Cheam Operatic Society Grand Duke: Bertha
- Michelow, Sybil:
- 1966 BBC Sorcerer: Lady Sangazure
- Midgley, Vernon:
- 1974 BBC Yeomen Video: 1st Yeoman
- 1989 BBC Gondoliers: Luiz
- Miller, Jeffrey:
- 2003 Ohio Light Opera Yeomen: Wilfred Shadbolt
- Miller, John-Arthur:
- 2000 Ohio Light Opera Princess Ida: Guron
- Miller, Marjorie:
- 1959 A Child's Introduction to Gilbert and Sullivan: Soloist
- Miller, Mitch:
- 1959 A Child's Introduction to Gilbert and Sullivan: Conductor
- Miller, Robert:
- 1959 A Child's Introduction to Gilbert and Sullivan: Soloist
- Millidge, Henry:
- 1922 D'Oyly Carte Pinafore: Sir Joseph Porter (part)
- 1928 D'Oyly Carte Yeomen: Second Yeoman
- Milligan, James
- 1957 Sargent/EMI Gondoliers: Antonio; Giorgio
- 1958 Sargent/EMI Pinafore: Bill Bobstay (part); Bob Becket (part)
- 1961 Sargent/EMI Pirates: Pirate King
- Millman, Dorren:
- 1970s Beaufort Opera Ivanhoe: Rebecca
- Mills, Beverley:
- 1982 Brent Walker Iolanthe: Iolanthe
- Milner, Howard:
- 1989 BBC Utopia: Sir Bailey Barre
- Milsom, Deborah:
- 1986 Stratford Festival Gondoliers: Casilda
- Minor, Eugene:
- 1965 Los Angeles Savoy-Artes Utopia: Conductor
- Minty, Shirley:
- 1966 BBC Patience: Lady Angela (music)
- 1966 BBC Gondoliers: Inez
- 1966 BBC Grand Duke: Elsa
- Mismas, James:
- 2005 Ohio Light opera Sorcerer: Dr. Daly
- Mitchell, Barbara:
- 1966 BBC Iolanthe: Queen of the Fairies (dialogue)
- Mitchell, Madeleine:
- 1991 New D'Oyly Carte Iolanthe: Leila
- Mitchell, Margaret:
- 1950 D'Oyly Carte Gondoliers: Casilda
- 1950 D'Oyly Carte Mikado: Yum-Yum
- 1950 D'Oyly Carte Ruddigore: Rose Maybud
- 1951 BBC Broadcast Mikado: Yum-Yum
- 1951 D'Oyly Carte Iolanthe: Phyllis
- 1951 D'Oyly Carte Patience: Patience
- Mitchell, Robert:
- 1989 Opera Australia Gondoliers: Annibale
- Molina, Pep:
- 1987 El Mikado: Nanki-Poo
- Montaine, Gary:
- 1992 New D'Oyly Carte Mikado Video: Pooh-Bah
- 1993 New D'Oyly Carte Yeomen: Wilfred Shadbolt
- Monter, Diana:
- 1965 Los Angeles Savoy-Artes Utopia: Princess Kalyba
- Moore, Appleton:
- 1930 Columbia Mikado: Ko-Ko; Pish-Tush (part)
- 1931 Columbia Gondoliers: Antonio; Duke of Plaza-Toro
- 1931 Columbia Yeomen: Jack Point
- 1931 Columbia Iolanthe: Earl of Mountararat
- Moores, Michael:
- 1969 Gilbert and Sullivan For All: Conductor
- Moose, G. Eugene:
- 1980 Joseph Papp's Pirates: Samuel (Central Park)
- Moreland, Johanne:
- 1959 A Child's Introduction to Gilbert and Sullivan: Soloist
- Morey, Cynthia:
- 1955 D'Oyly Carte Ida: Sacharissa
- 1962 Sadler's Wells Iolanthe: Fairy [sic]
- Morgan, Elizabeth:
- 1966 BBC Patience: Lady Angela (dialogue)
- Morgan, Fisher:
- 1951 D'Oyly Carte Iolanthe: Private Willis
- 1953 D'Oyly Carte Sorcerer: Sir Marmaduke Pointdextre
- 1954 BBC Broadcast Mikado: Pooh-Bah
- 1955 D'Oyly Carte Ida: King Hildebrand
- Morgan, Tim:
- 1991 New D'Oyly Carte Gondoliers: Antonio
- Morison, Elsie:
- 1957 Sargent/EMI Mikado: Yum-Yum
- 1957 Sargent/EMI Gondoliers: Gianetta
- 1958 Sargent/EMI Yeomen: Elsie Maynard
- 1958 Sargent/EMI Pinafore: Josephine
- 1959 Sargent/EMI Iolanthe: Phyllis
- 1961 Sargent/EMI Pirates: Mabel
- 1961 Sargent/EMI Trial: The Plaintiff
- 1963 Sargent/EMI Patience: Patience
- 1963 Sargent/EMI Ruddigore: Rose Maybud
- Morley, Barry:
- 1963 Lyric Theater Company Utopia: Captain Fitzbattleaxe
- Morphy, Derek:
- 1994 CBC A Gilbert & Sullivan Gala: Soloist
- Morelle, Maureen:
- 1989 BBC Pirates: Kate
- Morningstar, Gershom C.:
- 1973 UMGASS Grand Duke: Rudolph
- Morrell, Roberta:
- 1982 D'Oyly Carte: The Last Night: Soloist
- Morrison, Richard:
- 1999 BBC Music Magazine Rose of Persia: Sultan
- 2001 Carl Rosa Opera Mikado: Pish-Tush
- Mortimer, Alex:
- 1962 Highlights of Gilbert and Suillivan: Conductor
- Moss, Gary:
- 2007 Ohio Light Opera Gondoliers: Don Alhambra
- Moulan, Frank:
- 1932 Civic Light Opera of NY Pirates: Major-General
- 1932 Civic Light Opera of NY Mikado: The Mikado, Pooh-Bah, Ko-Ko
- Moxon, Alice:
- 1929 D'Oyly Carte Iolanthe: Celia
- 1931 D'Oyly Carte Gondoliers: Casilda
- 1931 D'Oyly Carte Ruddigore: Zorah
- 1932 D'Oyly Carte Ida: Lady Psyche
- 1933 D'Oyly Carte Sorcerer: Constance
- Moyle, Julian:
- 1962 Sadler's Wells Iolanthe: Strephon
- Mueller, Helen:
- 1965 Lyric Theater Company Grand Duke: Martha
- Muggleton, Amanda:
- 1997 Essgee Entertainment Pinafore: Little Buttercup (Australia)
- Murch, Polly:
- 1966 BBC Iolanthe: Celia (dialogue)
- Murray, Carl:
- 1970s Beaufort Opera Ivanhoe: Prince John
- Murray, Doreen:
- 1966 BBC Utopia: Phylla
- Murray, Niall:
- 1989 BBC Gondoliers: Giuseppe
- Murray, Peter:
- 1972 G&S For All Trial: Conductor
- 1972 G&S For All Pinafore: Conductor
- 1972 G&S For All Pirates: Conductor
- 1972 G&S For All Iolanthe: Conductor
- 1972 G&S For All Mikado: Conductor
- 1972 G&S For All Ruddigore: Conductor
- 1972 G&S For All Yeomen: Conductor
- 1972 G&S For All Gondoliers: Conductor
- 1972 Sullivan: Conductor
- Musick, John:
- 2003 Ohio Light Opera Yeomen: Sergeant Meryll
