My description of Jemima is I totally agree with everything Victoria 
said. She is a young cat wise for her age who understands life but 
still has an air of innocence about her that makes her seem like a 
child. She can relate to the problems of life and understands how 
Grizabella feels. In the movie, whoever portrays her did a great job 
and has a beautiful voice! She also--though she is wise and innocent 
can become playful like regular kittens--like her "group" consisting 
of Victoria and Etcetera.

- Rumpelteazer