| A | B |
| Napoleon | the pig who eventually becomes leader of Animal Farm; based on Stalin |
| Snowball | pig who challenges Napoleon and is eventually chased off; wanted to make windmill |
| Boxer | horse who is the most faithful and hardworking |
| Squealer | pig who spreads news and propaganda to other animals |
| Old Major | prize-winning boar whose ideas for a better life for animals embody animalism; teaches "Beasts of England" |
| Clover | female horse; hard working and and good-hearted |
| Moses | raven who tells of Sugarcandy Mountain |
| Mollie | frivolous female horse who likes ribbons |
| Benjamin | old donkey who believes life will always remain hard |
| Murial | white goat who reads the 7 Commandments to Clover whenever Clover suspects they've been changed |
| Mr Jones | the farmer who abused the animals and was run off |
| Mr Whymper | the human solicitor/lawyer used as a go-between |
| Frederick and Pilkington | neighboring farmers |
| Jessie and Bluebell | the dogs |
| Minimus | the poet pig who writes songs to replace "Beasts of England" |