The artist died Monday at the age of 82.
Withers spent her Broadway career understudying stars including Carol Channing, Julie Harris, and Zsa Zsa Gabor.
Seldes won a 1967 Best Featured Actress in a Play Tony for her role in the Broadway premiere of Edward Albee's A Delicate Balance.
Holder also won a Tony for his costumes of the fan-favorite musical.
The stage and screen favorite was most recently seen on Broadway in Follies and Six Dance Lessons in Six Weeks.
Sinden, known for his classical roles, appeared on Broadway in London Assurance.
Crewe is best known for his numerous hits for Frankie Valli and the Four Seasons.
Rivers was 81 years old.
Del Rossi worked at the theater for 40 years.
Mallory, who was 64, had been battling pancreatic cancer.