Bryn Walters as Macavity in the film version of Cats.

Macavity is the main antagonist of the Andrew Lloyd Webber musical Cats. He is a notorious criminal cat and the Jellicle Cats' greatest threat. Macavity also appears as a fictional character who is described in a poem in Old Possum's Book of Practical Cats, by T. S. Eliot.

In the film version of Cats, he was portrayed by Bryn Walters.

Role in the musical

During the first act, two loud crashes then startle the Jellicle Cats as warnings that Macavity is nearby. In the second act, a third crash is heard. Macavity appears with an evil laugh. Macavity's minions throw a net over the Jellicle leader Old Deuteronomy and capture him. As the other Cats try to follow him, Demeter and Bombalurina sing what they know about Macavity. He is a "master criminal" and is never found at the scene of the crime. He is considered the card-cheating Napoleon of Crime . After the song, Macavity returns disguised as Old Deuteronomy, but when Demeter blows his cover, Macavity ends up fighting with Munkustrap and Alonzo. Though Macavity holds his own for a time, the rest of the tribe begin to gang up and surround him, but he shorts out the stage lights as an attempt to escape in the confusion. After the fight, the Rum Tum Tugger suggests that the Cats should find a local magician named Mr. Mistoffelees "the original conjuring cat" for help. Mr. Mistoffelees soon arrives just in time to restore the lights and bring back Old Deuteronomy, earning praise from all the Cats.