Iannucci, Michael - Motel in Fiddler on the Roof (1998);

Ifland, Susan - Dog Provision in Drood! (The Mystery of Edwin Drood) (1988);

Iglesias, Loida - Citizens of New York in Seesaw (1973);

Ignisci, Mario - Royal Dancers in King and I, The (1959); Spirit of Nordraak in Song of Norway (1959);

Igou, Bert - Singing Ensemble in (1932); Page Boy in Blue Paradise, The (1932); The Cut Purse in Cyrano de Bergerac (1932); Lieutenant Young in Love Call, The (1932); Singing Ensemble in (1931);

Ihde, Marthe - Hodel in Fiddler on the Roof (1982);

Ikeda, Peggy Ann - Princesses and Princes in King and I, The (1959);

Ikeda, Valerie Jane - Princesses and Princes in King and I, The (1959);

Iken, Greg - Trees in Peter Pan (1993);

Ilagan, Jose - Princesses and Princes in King and I, The (1967);

Ilagan, Maria - Princesses and Princes in King and I, The (1967);

Imre, Zoltan - Corps de Ballet in Stuttgart Ballet, The (1971);

Imry, Wilma - Ensemble in (1928);

Inder, Fergus - Shore Patrol Officer/Ensemble in South Pacific (2013);

Indyck, Tyler Bradley - Doody in Grease (2014);

Ing, Alvin - Eglamour in Two Gentlemen of Verona (1973); Wang Ta in Flower Drum Song (1965);

Inge, Matthew - Shloime/Bottle Dancers/Understudy for Mendel in Fiddler on the Roof (1976);

Ingham, Barrie - King Pellinore in Camelot (1981);

Inghram, Rose - Meg in Damn Yankees (1964); Sue Smith in No, No, Nanette (1953); Manon LaGrevette in Bitter Sweet (1941);

Ingraham, Willie - Servant in Maytime (1930);

Ingram, Charlie - Lesgles/Chain Gang in Les Misérables (2013);

Ingram, Jo Ann Harris - Lily/Ensemble - Mezzo/Alto in Porgy and Bess (1988);

Ingram, Naomi - Singing Ensemble in (1944); Singing Ensemble in (1943); Singing Ensemble in (1942);

Inloes, David - Frank/Understudy for Don, Greg in Chorus Line, A (1985); Boys and Girls at Oxford in Where's Charley? (1982);

Inman, Nancy - Amaryllis in Music Man, The (1971);

Innéo, Anthony - Zach in Chorus Line, A (1985);

Inone, Yanco - Luis in West Side Story (1967);

Insinnia, Albert - Mordred in Camelot (1981);

Interior, Raymond - Ensemble in Mary Poppins (2013);

Inukai, Kathy - Princesses and Princes in King and I, The (1963);

Inukai, Tora - Princesses and Princes in King and I, The (1963);

Irion, Laura - Silly Girls/Ensemble in Beauty and the Beast (2010); Sillabub in Cats (2010); Ensemble in Footloose (2010);

Irvine, Nancy - Dancing Ensemble in (1967); Edna in Gypsy (1967); Royal Dancers in King and I, The (1967); Ladies - Dancers in West Side Story (1967); Dancing Ensemble in (1965);

Irving, George - Singing Ensemble in (1942); Eagle Rock in Girl Crazy (1942); The Foreign Gentleman in Glamorous Night (1942); Chief Petty Officer in Hit the Deck (1942); Captain De Jean in New Moon, The (1942); Café Owner in Roberta (1942); Tibia/First General in Wizard of Oz, The (1942);

Irving, George S. - Madame Lucy in Irene (1973);

Irving, Margaret - Mrs. Teale in Roberta (1945);

Irwin, Mabel - Ensemble in (1927);

Irwin, Rodney - Dancing Ensemble in (1967); Royal Dancers in King and I, The (1967); Gentlemen - Dancers in West Side Story (1967);

Isaacs, Pamela - Glinda in Wizard of Oz, The (2006); Principal in Hooray for Hollywood!: Songs from the Movies (2002); Principal in Evening of Gershwin, An (2001);

Isaacs, Ruth - Singing Ensemble in (1946); Singing Ensemble in (1944);

Isabayev, Chalagyz - "Kara-Aspoi" Performers in Russian Festival of Music and Dance (1976);

Isenring, Lucia - Corps de Ballet in Stuttgart Ballet, The (1971);

Ishee, Suzanne - Colette/Understudy for Mme. Dindon in La Cage aux Folles (1986);

Ishi, Frank - Princesses and Princes in King and I, The (1967);

Ishimatsu, Kyoko - Principals of the Stuttgart Ballet/Dancers at a Carnival in Stuttgart Ballet, The (1971);

Isley, Jamie - Ensemble in Festival on Ice (1985);

Isom, Abigail - Jojo in Seussical (2014); Annie in Annie (2009);

Isom, Steve - Lord Boxington/Jamie/Selsey Man/Ensemble in My Fair Lady (2015); George/Audition Panel in Billy Elliot (2014); Male Ensemble in Pirates! (or, Gilbert & Sullivan Plunder'd) (2012);

Israel, Susannah - Martha in Seven Brides for Seven Brothers (1994); Laurey (Ballet) in Oklahoma! (1993);

Ista, - The Butterfly in Babes in Toyland (1963); The Butterfly in Babes in Toyland (1959);

Istomina, Anna - Premiere Danseuse in Countess Maritza (1952); Fifi (in the ballet) in Mlle. Modiste (1952);

Ittner, Anthony - Ensemble in (1929);

Ivanova, Tatiana - Gypsies/Ensemble in Moiseyev Dance Company (1974);

Iverson, Megan - People of the Street in Little Shop of Horrors (1996);

Ives, Donald - Townspeople, Waiters, Etc. in Hello, Dolly! (1992); Clients of Puffer/Mr. Montague Pruitt/Citizens of Cloisterham/Understudy for Neville Landless in Drood! (The Mystery of Edwin Drood) (1988); Ensemble in Gentlemen Prefer Blondes (1986); Buskers/Footmen/Ensemble - Dancers in My Fair Lady (1985);

Ives, Muriel - Dancing Ensemble in (1950);

Ivory, Delores - The Eva Jessye Choir in Porgy and Bess (1964);

Ivory-Davis, Delores - Serena in Porgy and Bess (1977);

Iwamatsu, Sala - Gigi/Ensemble in Miss Saigon (2001);

Izard, Camille - Dancing Ensemble in (1970); Ludmilla in Fiddler on the Roof (1970); Living Statue in George M! (1970);