| Character | Name | Author |
| The eldest of four sisters who live in Orchard House | |
| An Assistant Pig-Keeper | |
| A teenaged inventor | |
| A young Kansan girl who owns a small dog | |
| The fey friend to a boy who refuses to grow up | |
| A boarding school student who is stricken with appendicitis | |
| The patriarch of a family of bears | |
| A furry engineer named after a Scottish town | |
| A boy who eats a live turtle | |
| A wooden boy, close friend of Big Ears | |
| A bear who hails from Darkest Peru | |
| An American boy who becomes an English Earl | |
| A well-travelled Siamese cat | |
| A tea-party guest with Alice, the Hatter, and a dormouse | |
| A young girl with an older sister named Beatrice | |
| An elderly rabbit who suffers from rheumatism | |
| A Blackmouth Cur with a yellow coat | |
| A solitary but generous resident of the Wild Wood | |
| An adventurous British pilot | |
| The sleuth who unraveled the secret of the old clock | |
| The self-proclaimed 'oldest thing in England' | |
| A brave and protective mongoose | |
| The mother of 4 winged kittens | |
| A bull who likes to sit under a cork tree | |
| The youngest brother of Meg Murry | |
| A mouse with a mechanical friend | |
| A rather biblical lion | |