'Siri the Clouded Leopard' is the Main Antagonist of Rugrats go wild. She first has an encounter with Eliza, Darwin and Spike who are looking for the Rugrats, after Spike peed on her tail. Siri introduces herself to which Spike does as well. His mannerisms throw her off a little. She begins to ponder in which order she should eat the trio. Spike makes commentary on how Siri is just a giant house cat which leads to the song 'Big Bad Cat.' After being dumped into the river, it is revealed that they are looking for human babies rather than the originally thought (by Eliza and Darwin) Puppies.
She is voiced by veteran rock singer Chrissie Hynde.