|Fairy Tale:||Alice's Adventures in Wonderland|
|Appearances:||"The Fairy-Tale Detectives" (in passing)|
"Tales from the Hood"
"The Inside Story"
The Mad Hatter is the famous hatter from Lewis Caroll's Alice's Adventures in Wonderland. In the Sisters Grimm series, he is the judge in the trial of the Big Bad Wolf. As the trial was arranged by the Scarlet Hand in the hopes that Mr. Canis would be found guilty and executed, they thought having an insane judge would help them, but the Hatter turns out to be extremely unpredictable for them as well as for Sherwood Group.