Mallory, who was 64, had been battling pancreatic cancer.
Wilson's musical was responsible for the American stage debut of Julie Andrews.
The 1940s Hollywood leading lady and wife of Humphrey Bogart achieved great success on both stage and screen.
The Oscar-winning stage and screen star was 63 years old.
Keating is best known for his performance as Carl Hutchins on Another World.
The theater and television favorite is known most recently for her work on NBC's 30 Rock.
The stage and screen actress is best known for her portrayal of Maudie Atkinson in the 1962 classic film To Kill a Mockingbird.
Rodgers was also the author of the novel Freaky Friday.
The Method actor studied with film legends including Marlon Brando, Montgomery Clift, and Marilyn Monroe.
Goffin's songwriting partnership with King is depicted in the current Broadway musical Beautiful.