Squealer

Squealer is a pig who serves as the main minion of Napoleon and the secondary antagonist of the book Animal Farm by George Orwell.

Squealer goes around telling lies to the other gullible farm animals to cover up and/or justify Napoleon's atrocities and convince the animals to stay loyal to him. He represents the propagandists in the Soviet Union during the Stalin era, most likely Molotov, although in this case all of Squealer's claims are simply outright lies.