Mrs. Tibble

Mrs. Tibble is Tommy and Timmy Tibble's grandmother.

Appearance
Mrs. Tibble is a bear depicted 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.

Episode Appearances

 * Season 1
 * Arthur Bounces Back 0108b
 * Arthur Babysits 0109a
 * Season 2
 * Arthur Meets Mister Rogers 0201a
 * Season 3
 * Attack of the Turbo Tibbles 0310a
 * Double Tibble Trouble 0311a
 * Season 7
 * To Tibble the Truth 0704a
 * Season 8
 * Arthur's Snow Biz 0803a
 * Season 11
 * Mind Your Manners 1102b
 * Season 13
 * A Portrait of the Artist as a Young Tibble 1307b
 * Season 16
 * Night of the Tibble 1605a
 * Season 18
 * Tibbles to the Rescue 1808b