• Old Major - The award-winning boar whose vision of a socialist utopia serves as the inspiration for the Rebellion.

• Napoleon- The pig who ends up as the leader of Animal Farm after the Rebellion.

• Snowball- pig who challenges Napoleon for all power of Animal Farm after the Rebellion.

• Squealer- The pig who tells everyone about Napoleon's propaganda among the other animals. Squealer justifies the pigs' monopolization of resources and spreads fake statistics pointing to the farm's success.

• Minimus- he poet pig who writes verse about Napoleon and pens the banal patriotic song

• Clover- A good-hearted female cart-horse and Boxer's close friend. Clover often suspects the pigs of violating one or another of the Seven Commandments, but she repeatedly blames herself for misremembering the commandments.

• Boxer- The cart-horse whose incredible strength, dedication, and loyalty play a key role in the early prosperity of Animal Farm and the later completion of the windmill.

• Muriel- The white goat who reads the Seven Commandments to Clover whenever Clover suspects the pigs of violating their prohibitions.

• Benjamin- The long-lived donkey who refuses to feel inspired by the Rebellion. Benjamin firmly believes that life will remain unpleasant no matter who is in charge.

• Mollie- The vain, flighty mare who pulls Mr. Jones's carriage. Mollie craves the attention of human beings and loves being groomed and pampered.

• Jessie & Bluebell- Two dogs, each of whom gives birth early in the novel. Napoleon takes the puppies in order to “educate” them.

• Moses- The traned raven who spreads stories of Sugarcandy Mountain, the paradise to which animals supposedly go when they die. Moses plays only a small role in Animal Farm, but Orwell uses him to explore how communism exploits religion as something with which to pacify the oppressed.

• Mr. Jones- The alcholic farmer who runs the Manor Farm before the animals stage their Revolution and create Animal Farm.

• Mr. Pilkington- The easygoing gentleman farmer who runs Foxwood, a neighboring farm. Mr. Frederick's bitter enemy.

• Mr. Frederick- The tough, shrewd operator of Pinchfield, a neighboring farm.

• Mr. Whymper- The human solicitor who Napoleon hires to represent the Animal Farm in human society.

http://www.sparknotes.com/lit/animalfarm/characters.html