Jenner

Jenner
Background information
Feature films	The Secret of NIMH
Voice	Paul Shenar
Character information
Personality	brutal, bloodthirsty, greedy, vicious
Appearance	gray rat, thick black eyebrows, goatee, green demonic eyes, red tunic, pink-purple-and black cloak, square gold pendant, barefoot
Occupation	Rat of the Thornbush
Goal	To kill Nicodemus (succeeded); also to get the amulet he gave to Mrs. Brisby (failed)
Minions	Sullivan (formerly)
Enemies	Mrs. Brisby, Justin, the rats, Sullivan, Nicodemus
Likes	power, lust, possibly Elizabeth Brisby (perhaps some hidden dark lust)
Dislikes	Nicodemus, any of the rats listening to Mrs. Brisby's "lies" (which weren't lies)
Weapons	sword
Fate	Sullivan throws a knife at him in the back and he falls to his death into the mud. (But then revives after Brisby uses the Stone; unknown what happened to him after.)
Quote	"He wanted to destroy everything. I've learned this much: take what you can when you can!" "No taste for blood, eh? They've taken the animal out of you."

Jenner is the primary antagonist of The Secret of NIMH, though he appears in less of the film. He betrayed his own kind because instead of leaving to live a better life in Thorn Valley, he'd rather remain in the rose bush. He has a reluctant sidekick named Sullivan. His goal is to kill Nicodemus and to take away the amulet he gave to Mrs. Brisby. He is voiced by the late Paul Shenar, who helped Don Bluth alternate the character into making Jenner from a dull character to a sharp villian.

He is first seen arguing with the rats of NIMH about either they should stay in the rose bush or to leave to live in Thorn Valley. When he met Mrs. Brisby, he found "opportunity" in the idea to help move the Brisby home. He "apologized" for the behavior and agreed to help. Politely, she thanks him, but is uneasy in his presence. While Mrs. Brisby and Nicodemus are leaving for their boat ride, Jenner plans to sabotage the operation by cutting the ropes that will support the Brisby home, hoping to crush Nicodemus. The plan was a success. He soon made a speech that one day they'll fulfill Nicodemus' wish and tell them to come and return to the rose bush. But Mrs. Brisby arrived just in time to warn the rats that NIMH are coming. At first, Jenner tries to convince the rats that she was lying, but than he attacked her. Just than, Justin stand in front of him to defend her. When Jenner saw the amulet, he cut Justin's arm and tries to take it from her, nearly strangling her to death. Justin charges in towards him and saves her and than fights back, using the sword that Sullivan, who soon got slain by Jenner, toss to him. The fight lasted a long time until Justin stabbed him in the stomach. Refusing to lose, Jenner climbed onto the rock and was about to kill Justin. The dying Sullivan throws the dagger into Jenner's heart, in which where he fell and became fatally wounded. When Mrs. Brisby used the Stone to revive her children, he (along with Nicodemus and Sullivan) have revived and its unknown what happened to him later after the successful move of the Brisby home.

Some few people have said there was some hint of dark romance between Elizabeth Brisby and Jenner Genre. Some people like Stitchpunk89, FoxyNightmare, baran777 (deviantart.com) and Opal Night (fanfiction.net). They could be right. There are some stories on Fanfiction.net by Opal Night called "Intrusion" and "Illusion".