The show that made them
The show where somebody arrived. Girl Crazy in 1930 was Ethel Merman's first Broadway credit; Brigadoon was Helen Gallagher's. Every show here is the earliest credit of a performer who went on to at least six more.
300 in the catalogue.
| I Can Get It For You Wholesale | 1962 | Musical |
| I Love My Wife | 1977 | Musical |
| I Married an Angel | 1938 | Musical |
| In the Heights | 2008 | Musical |
| Into the Woods | 1987 | Musical |
| Irene | 1919 | Musical |
| Irma La Douce | 1960 | Musical |
| Jamaica | 1957 | Musical |
| Jerome Robbins’ Broadway | 1989 | Musical |
| Jesus Christ Superstar | 1971 | Musical |
| Jubilee | 1935 | Musical |
| Jumbo | 1935 | Musical |
| Juno | 1959 | Musical |
| Kean | 1961 | Musical |
| Kelly | 1965 | Musical |
| Kismet | 1953 | Musical |
| Kiss Me, Kate | 1948 | Musical |
| Kiss of the Spider Woman | 1993 | Musical |
| Kiss Of The Spider Woman-the Musical | 1993 | Musical |
| Knickerbocker Holiday | 1938 | Musical |
| Kwamina | 1961 | Musical |
| La Cage aux Folles | 1983 | Musical |
| Lady in the Dark | 1941 | Musical |
| Leave It to Me! | 1938 | Musical |
| Legally Blonde | 2007 | Musical |
| Lend An Ear | 1948 | Revue |
| Les Miserables | 1987 | Musical |
| Let ‘Em Eat Cake | 1933 | Musical |
| Little Johnny Jones | 1904 | Musical |
| Little Me | 1962 | Musical |
| Mame | 1966 | Musical |
| Mamma Mia ! | 2001 | Musical |
| Man of La Mancha | 1965 | Musical |
| Mary Jane McKane | 1923 | Musical |
| Me and Juliet | 1953 | Musical |
| Me And My Girl | 1986 | Musical |
| Mexican Hayride | 1944 | Musical |
| Miss Liberty | 1949 | Musical |
| Miss Saigon | 1991 | Musical |
| Mlle. Modiste | 1905 | Musical |
| Movin’ Out | 2002 | Musical |
| Much Ado About Nothing | 2026 | Special |
| Music Is | 1976 | Musical |
| My Fair Lady | 1956 | Musical |
| My Favorite Year | 1992 | Musical |
| Never Gonna Dance | 2003 | Musical |
| New Faces | 1934 | Musical |
| New Girl In Town | 1957 | Musical |
| No Strings | 1962 | Musical |
| No, No, Nanette | 1925 | Musical |
| Nowhere To Go But Up | 1962 | Musical |
| Of Thee I Sing | 1931 | Musical |
| Oh, Kay! | 1926 | Musical |
| Oklahoma! | 1943 | Musical |
| Oliver! | 1963 | Musical |
| On the Twentieth Century | 1978 | Musical |
| On Your Toes | 1936 | Musical |
| Once on This Island | 1990 | Musical |
| Once Upon A Mattress | 1959 | Musical |
| One Touch of Venus | 1943 | Musical |