Mrs. Tibble

Mrs. Tibble is the grandmother of Timmy and Tommy Tibble and the mother of Trixie. She takes care of the twins for her daughter, who travels around the world. In Desperately Seeking Stanley, Arthur Read discovers that she is a toy maker and has repaired a large collection of antique toys.

Appearance
Mrs. Tibble is depicted as a bear with a brown complexion, gray hair worn in a bun, and wears a bluish-green dress, a white shirt, a pink button-up shirt, and pink high-heeled shoes. When she first appeared in the book Arthur's Halloween that was first published in 1982, and returned in the 1992 book Arthur Babysits, she and the Tibble Twins were humans although they later became bears for the cartoon, but they're still humans in the later books.

Appearances

 * Season 1
 * Arthur Bounces Back 010802
 * Arthur Babysits 010901
 * Arthur and the Crunch Cereal Contest (Cameo) 11601
 * D.W. Flips 11602
 * D.W. Rides Again 11901
 * The Scare-Your-Pants-Off Club (Cameo) 12802
 * My Club Rules 12901
 * Season 2
 * Arthur Meets Mister Rogers 20101
 * Season 3
 * I'd Rather Read It Myself 30202
 * The Chips are Down (Cameo) 30501
 * Attack of the Turbo Tibbles 31001
 * Double Tibble Trouble 31101
 * Arthur's Almost Live Not Real Music Festival 31102
 * Season 4
 * Prunella Gets it Twice (Cameo) 40602
 * Prunella's Prediction (Cameo) 40802
 * Season 5
 * Sleep No More (Cameo) 50701
 * Season 6
 * D.W.'s Backpack Mishap 60602
 * More! (Cameo) 60702
 * Season 7
 * To Tibble the Truth 70401
 * Elwood City Turns 100! (Cameo) 70500
 * Season 8
 * Arthur's Snow Biz 80301
 * D.W., Dancing Queen (Cameo) 80402
 * Sue Ellen Chickens Out (Cameo) 80502
 * Season 11
 * Mind Your Manners 110202
 * Season 12
 * Is That Kosher? (Cameo) 120101
 * Ungifted 120402
 * Season 13
 * A Portrait of the Artist as a Young Tibble 130702
 * Season 16
 * Night of the Tibble 160501
 * On the Buster Scale (Cameo) 160802
 * Season 18
 * Two Minutes 180701
 * Tibbles to the Rescue 180802