Dorothy Hazeltine

is a supporting character that appears in "Yo-kai Watch 3". She is the older sister of Mac she is good friends with Nathan Adams and in Yo-kai Watch 3:Sukiyaki during the Katie playthrough quest she is best friends with Katie Forester her self.

appearance

 * "Yo-kai Watch 3": Supporting Character.

Mac
Mac is the younger brother of Dorothy.

Nate Adams
Just like her brother Mac, she too is good friend's with Nate when moves the USA.

Katie Forester
During the "Sukiyaki" Katie playthrough quest. Dorothy and Katie are best friend's hanging out together and eating Sweet's together.

Beddy-Byes
It is revealed that Beddy-Byes is the Yo-kai form of "Dorothy and Mac's" mother's feeling's.

Mifu
When we first meet the Yo-kai Mifu, It is actually Dorothy herself who introduces Nate to Mifu. This could imply that it was Dorothy who released Mifu from her Capsule.

Trivia

 * Dorothy is the female human character to meet Katie's Yo-kai form Mifu.