Garrett Bobby Ferguson, Jr, also known as The , and GBFJ, is the main antagonist in the episode "Exit 9B". He is the son of Garrett Bobby Ferguson. In the episode, he forcefully takes the park from the staff and erases all their memories (except Mordecai and Rigby, who escaped in a time machine). Near the episode's climax, he reveals that he wanted to build the highway as a portal to the underworld where he can revive all of the park staff's enemies (including his father) to get revenge on them for their murderous defeats. At the end of the episode, Mordecai and Rigby manage to collect all the staff's, legally making the park a landmark. This causes the portal to suck all the revived villains back in, and GBF and GBF Jr. to explode.
- He will become the Weekenders' enemy in Weekenders Adventures of Regular Show: Exit 9B.
- He will appear in Team Robot In Pokemon Movie: Volcanion and the Mechanical Marvel.