Carnival of Monsters (3rd Doctor) - The Secrets of Doctor Who

Lilliputian Doctor! Jimmy Akin, Dom Bettinelli, and Fr. Cory Sticha discuss this story of the 3rd Doctor and Jo getting shrunk into an alien flea circus of sorts and getting caught up in an attempted coup and a slave rebellion. Who are the real monsters here?

https://starquest.fm/WHO344