This page contains trivia for "Professor Chaos". Remember, trivia must be factual, provable, and it is always best to cite your source for not-so-obvious trivia. If you would like to dispute a trivia point, please discuss it in the article comments.
On the wall of the room in the beginning, there is a "Cow Days" banner and a stuffed panda which resembles the Sexual Harassment Panda from "Sexual Harassment Panda".
Damien Thorn is seen in the background as a candidate to be the boys' new best friend.
As Professor Chaos walks down the street, a man can be seen who has a relatively large role in "The Passion of the Jew".
This is the last episode to have the original season 6 intro, in which Butters holds a "Butters Show" sign in front of the title. Afterwards, Tweek is next to the other boys, and Butters, dressed as Professor Chaos, knocks over the title.
As the boys call Loogie to get a rose, Damien had not been selected, but was holding a rose anyway.
Despite being selected for the final six, Pip Pirrup is absent during the swimsuit competition.
At the baseball game, Cartman tells Pip to leave. However, his picture still appears in the finals.
When the boys mention that there is twenty contestants to get the position of the fourth friend, there are really twenty-one in the shot. At the end, Cartman says there are four, but five are shown.
When they are handing out roses for the final six, it is shown when Jimmy Valmer is getting his rose that Craig Tucker is clearly holding a rose in his hand, despite not being selected.
Butters has a camera in his garden linked up to the screen at the baseball pitch when he tries to flood the world. However, in the zoomed-out shot of his house, the camera is absent.
There is a hidden visitor standing in the yeti log ride.