Dr. Zimmer

Dr. Zimmer is a scientist who studies various subjects.

Biography
Dr. Zimmer, although not given by name, was the paleontologist in "Buster's Dino Dilemma" who informed Arthur and Buster about Dr. Marsh and Dr. Cope's study on their fossil.

He appears in "Sue Ellen Moves In" in Arthur's imagination where Sue Ellen is a spy for Ngngafajhg.

He appeared again in "Sue Ellen's Lost Diary" in Francine's imagination explaining ogre-ism and why mean people should be kept separate from other kids. He has a German accent in "Sue Ellen's Lost Dairy," which references Albert Einstein, along with his uncombed white hair.

In "Fernkenstein's Monster," he is the old professor in Fern's story.

In "What is that Thing?," he plays tic-tac-toe with a robot in Arthur's daydream.

He appeared as a radiologist on the Arthur's Guide to Children's Hospital Boston website.

Appearances
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Arthur

 * Season 1
 * 103b "Buster's Dino Dilemma"
 * 121a "Sue Ellen Moves In"
 * Season 2
 * 214a "Sue Ellen's Lost Diary"
 * Season 4
 * 409a "What is that Thing?"
 * Season 8
 * 804a "Fernkenstein's Monster"

Books

 * Arthur and the Lost Diary (1998)

Websites
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 * Arthur's Guide to Children's Hospital Boston