Sullivan was Jenner's minion and a minor character in The Secret of NIMH, though he doesn't like the latter's idea of killing Nicodemus. He eventually was on Justin's side. He was voiced by the late Aldo Ray.
Role in the film[]
Sullivan is first seen in the Rose Bush among the Council of Rats. It is here he voices his little concern about moving the Brisby home; stating: "We've got problems of our own, let the lower creatures fend for themselves.". But Jenner stops him because he find an opportunity about the plan to kill Nicodemus.
Trivia[]
- While Jenner does have his own faction of rats, Sullivan never appears in the novel and Jenner is never killed by another rat.
- Due to being a minor character in the movie, Sullivan's name is never mentioned.
Gallery[]
| The Secret of NIMH |
|---|
 Characters: Mrs. Brisby | The Great Owl | Jeremy | Nicodemus | Mr. Ages | Auntie Shrew | Justin | Jenner | Sullivan | Teresa Brisby | Cynthia Brisby | Martin Brisby | Timothy Brisby | Brutus | Jonathan Brisby | Farmer Paul Fitzgibbons | Mrs. Beth Fitzgibbons | Billy Fitzgibbons | Dragon | Miss Right | Jenny McBride | Cecil | Joseph Valentine | Muriel & Floyd Songs Flying Dreams | My Life and My Love | Come Make the Most of Your Life | I Will Show the World | Magic Mystery Show | Just Say Yes! | All I Had is Gone |