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

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

Iles, Dorothy - Singer in White Horse Inn (1938);

Ing, Alvin - Want Ta in Flower Drum Song (1965);

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

Inghram, Rose - Meg Brockie in Damn Yankees (1964); Mrs. Darling in Peter Pan (1956); Sue Smith in No, No, Nanette (1953); Manon in Bitter Sweet (1941);

Inghram, William - Maytime (1930);

Ink Spots - The Big Show of 1936 (1972);

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

Inone, Yanco - West Side Story (1967);

Irving, George S. - Irene (1973);

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

Isaacs, Pamela - Glinda in The Wizard of Oz (2006); Hooray For Hollywood (2002); Gershwin (2001);

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

Ista, Barbara Belmore Strypek - Dancer in Babes In Toyland (1963); Dancer in Babes In Toyland (1959);

Istomina, Anna - Prem. Danseuse in Countess Maritza (1952); Ballet Fifi in Madmoiselle Modiste (1952);