Garrett Bobby Ferguson Sr.

Garrett Bobby Ferguson, Sr. (G.B.F.), also incorrectly referred to as Giant Bearded Face or Giant Beardo Face, is the main antagonist who appears in the  "High Score" and is from outer space. He was also the universe record holder for an arcade game called Broken Bonez. That is, until he was dethroned byMordecai and Rigby which caused him to die in an explosion of goo. He is a parody of the world renowned  highscore champion Billy Mitchell, who currently holds the record for playing a perfect game of Pac-Man. Garrett also appeared in the episode "Video Game Wizards", as a bronze statue. It's also likely that The Ferguson Convention Center was named after him.

He is the secondary antagonist of the episode Exit 9B. His son,Garrett Bobby Ferguson Jr. revives most of the villains in the past, including his father. But, all the park workers signed the petition to  the park and all the villains including the two G.B.Fs went back to the portal.