CATS

CATS is a famous Andrew Lloyd-Webber musical about anthro cats who inhabit a junkyard and sing a lot. Based on T.S. Eliot's Book of Practical Cats, the show tells the story of various members of the Jellicle tribe of cats over one night, the night of the Jellicle Ball. The show won seven Tony awards, and is the longest running show on Broadway. It also spawned the hit song Memory, as well as a film adaptation staring Elaine Paige and Ken Page.

For more information on the musical and/or film adaptations, you may look here.

Characterization
Because Cats is a musical, the cast consists of several primary characters and a host of named but undeveloped secondary characters. This ambiguity of canon allows for more flexibility of writing, and of the rapid adoption of fanon notions, such as the cats Munkustrap and Rum Tum Tugger being the sons of Old Deutoronomy, the leader of the tribe. However, the ambiguity of character also allows for the ignoring of fanon, as there is no definite canon. This can often lead to great differences of characterization between stories and may cause difficulty for an agent determining crimes against characters.

In badfic
Many Cats badfics centers around a new cat coming into the tribe and claiming the heart of one or another of the more popular canon characters. However, the fandom is quite small, and so the lack of fanfic in general makes the badfic less likely to stand out. It also means that no agents as of yet have tackled a Cats fic.

Another popular category of badfic is bad slash, often pairing Rum Tum Tugger and Mr. Mistofelees despite the former's known (and canonically established) fondness for Queens and the latter's canonically established youth.

Agents from the Cats continuum

 * Melpomene