Arthur Wiki
Thunder MacDuff
Gender Male
Job Weatherman
Cartoon debut "MacFrensky" (mentioned)

Thunder MacDuff is a local weatherman. In the episode "MacFrensky" the prize for the Student of the Month contest is lunch with him for the winner and one friend. When Brain is about to win the contest, Muffy and Francine cheat. They do eventually confess and Brain invites Muffy to accompany him to the lunch. Muffy calls Thunder MacDuff "dreamy."

Since the plot of "MacFrensky" is based on Shakespeare's Macbeth, the name Thunder MacDuff probably references Macbeth's antagonist Macduff.