Timothy "Timmy" Brisby is the 2nd youngest child of Mrs. Brisby from The Secret of NIMH and the main protagonist of The Secret of NIMH 2: Timmy to the Rescue. He hardly speaks in the film, as he spends most of his appearances there sick from pneumonia, but all of them in bed. However, he asked that he wanted to come outside with his family, but Mrs. Brisby refused because he might catch the fever again.