Wicked

"2024's Wicked boasts a vast array of characters, from Elphaba to the Wizard of Oz, and there is one small character who is actually quite important, despite being cut from the stage musical. Wicked may be one of the top movies of 2024, but its origins are far older, with the publication of Gregory Maguire's 1995 novel, Wicked: The Life and Times of the Wicked Witch of the West. In 2003, the book was adapted for the stage and became an instant hit on Broadway. Now, the beloved story of the Wizard of Oz's green-skinned witch is a Hollywood 

blockbuster."

https://screenrant.com/wicked-nanny-bear-book-character-musical-left-out-factoid/