Seventeen years old Veerle Casteleyn in the Dutch production of Cats
Here is an appreciation post for Jemima from Japanese productions. In the show she is an adult / older cat, and Sillabub plays her traditional role. She is part of the Gumbie Trio (alongside Tantomile and Jellylorum), which is pretty cool. Look at how stoked she is in the photo. In addition, she sings part of Grizabella the Glamour Cat, taking the place of Demeter.
I love her design, with her being a bright calico cat with prominent orange and black patches, and a vibrantly red wig. Her appearance is actually fairly close to Japanese Demeter, who is also a calico.