Mr. Fitzgibbon

"... in the vegetable garden owned by a farmer named Mr. Fitzgibbon." Mr. Fitzgibbon was a farmer who had two sons (Billy and Paul.) He also had a farm (Which Mrs. Frisby lived on) , plow, tractor etc. and he plowed each year after winter which caused Mrs. Frisby and her family to move to their summer cottage.

The Old Shrew Woman

"... a tiny thing scarcely bigger than a peanut, but with a wit as sharp as her teeth. she lived in a simple hole in the ground a few yards away..." (Pg. 30, 31) Mrs. Frisby had grown to like her and they became friends and talked when they saw each other.

Teresa

"Teresa the oldest..." (Pg.7) was another daughter of Mrs. Frisby who was sister was Cynthia and brothers were Martin and Timothy

Billy Fitzgibbon

"... younger brother Billy, who at age twelve was noisier and had an annoying habit of skimming rocks across the grass at anything that moved." (Pg.34) He was Paul's younger brother and another son of Mr. fitzgibbon. "Mrs. Frisby did not care much for Billy" (Pg.34)

Paul Fitzgibbon

"Paul, at fifteen, was a quiet, hardworking boy, rather clumsy in his movements but strong and careful about his chores." (Pg. 34) he was Mr. Fitzgibbon's son and Billy's older brother.

Jeremy the Crow

Jeremy "The crow who was young indeed in fact only a year old..." (Pg.23) Mrs. Frisby helped Jeremy get   untangled from a piece of shiny string before Dragon got them. in return Jeremy took her home. "... Jeremy was not the brightest of animals... and though he was young, he knew things and places Mrs. Frisby did not..." (Pg. 40)

Mr. Ages

"Mr. Ages was a white mouse who lived across the farm and beyond in a house that was part of a brick wall." He was a mouse who is considered a medicine mouse with lots of medicine.

Dragon the Cat

"... he was called Dragon... when he was a small kitten pretending to be fierce Mr. Fitzgibbons wife named that. but when he grew up, the name turned out to be an apt one." (Pg.21) " He was enormous, with a huge, broad head, and a large mouth full of curving fangs, needle sharp. He had seven claws on each foot and a thick furry tail, ... in color he was orange and white with glaring yellow eyes..." (Pg. 21)

Cynthia

"... Cynthia, the youngest, a slim pretty girl-mouse, light haired, and a little light-headed as well and over fond of dancing." (Pg. 7/8) she was the sister of teresa, the youngest and her brothers were timothy and martin. she cheered timothy up when he was sick.

Martin

"... Martin the biggest a strong, quick mouse, dark-haired and handsome like his poor father." (Pg.7) he was the second oldest and one of the sons of Mrs. Frisby.

Timothy

Timothy was one of the sons of Mrs. Frisby. he was the second youngest in a family of 4 children. "Timothy had on occasion, been known to think he was sick when he really was not." (Pg.4)

Mrs. Frisby

"Mrs. Frisby the head of a family of field mice..." (Pg.3) is the main character of Mrs. Frisby and the Rats of Nimh. Every day "Mrs. Frisby wakes up early as she always did."(Pg.5) and cared for her children. "Mrs. Frisby was able through luck and hard work to keep her family happy and well fed." (Pg.4)

Setting

Mrs. Frisby and the Rats of Nimh written by Robert C. Obrien is a story about day to day problems "... in an underground house in a vegetable garden..." (Pg.3) Owned by  farmer Fitzgibbons.