What is secret of nimh characters?

The Secret of NIMH is a 1982 animated adventure film directed by Don Bluth and based on the novel Mrs. Frisby and the Rats of NIMH by Robert C. O'Brien. The film features a number of memorable characters, both human and animal:

1. Mrs. Brisby - The main protagonist of the film, a brave and loving widow mouse who seeks a way to save her family from destruction.

2. Justin - An adventurous rat who helps Mrs. Brisby and is a member of the Rats of NIMH, a group of highly intelligent rats who have escaped from a laboratory where they were experimented upon.

3. Nicodemus - The wise and mysterious leader of the Rats of NIMH, who has the ability to speak to Mrs. Brisby through telepathy.

4. Jenner - A treacherous rat who seeks to take control of the rats and opposes Nicodemus.

5. Jeremy - A friendly but clumsy crow who helps Mrs. Brisby with her mission.

6. Auntie Shrew - An old and bossy shrew who is a neighbor of Mrs. Brisby and initially dislikes her but later becomes an ally.

7. Brutus - A burly and loyal rat who is a member of the Rats of NIMH.

8. The Great Owl - A wise and mysterious owl who gives Mrs. Brisby advice and guidance.

9. Farmer Fitzgibbons - The human farmer who owns the land where the animals live and who threatens to plow over Mrs. Brisby's home.

Each character has their unique personality and contributes to the overall story and themes of the film.