Jemima

As the youngest and smallest of the jellicles Jemima is constantly watched over by the other cats. She is the typical kitten, sweet and mischievous, and is usually found with the other kittens. And like them she is obsessed with Rum Tum Tugger.
She has "gone trough" some life changes that makes her act older than she is, tough it's not said what this changes are.
Jemima has a kittens innocence, but also has a wild side (witch mostly shows during Tugger's song). But this young kittem also possesses a great emotional understanding of the world around her, perhaps because of the earlier mentioned life changes, and is alway extending a friendly paw. She is totally open and unprejudiced about everything. She is sometimes found apart from the rest of the kittens pondering about life.
And she is the only cat who apart from Old Deuteronomy truly understands what happiness is.
She is very fascinated by Grizabella and seems ready to accept her, but Skimbleshanks and Jennyanydots keeps an eye on her and stops her whenever she comes to close to Grizabella.
Kittens may know best however because it's she and Victoria who helps the other cats gradually accept Grizabella.