In Monsters University, Randall is seen as a young and pimple-faced teenager. He sometimes wears his purple glasses.
In Monsters, Inc., Randall has a three-antennaed crest with pink tips on top of his head, purple skin, green eyes, four arms and legs, a sky blue tail, and has the ability to completely blend in with his surroundings, making him invisible (as well as being able to cling to walls). He can also camouflage like a chameleon.
In Monsters University, Randall was originally a kind, timid, helpful, friendly, and hospitable teenage monster who would hang out with Mike. However, after Randall abandons Mike to join RΩR, forcing him to befriend Sulley in order to join Oozma Kappa, he slowly turns on him by taking part in Johnny's mean prank to humiliate Oozma Kappa by having stuffed animals fall down on them, thus becoming his enemy.
In Monsters, Inc., Randall is very ruthless, short-tempered, manipulative, calculating, heartless, and overall evil in nature. He is also a cold, selfish, truculent, and argumentative jerk, as well as a creep who doesn't care about a lot of people.
When Waternoose became so worried of the company's problem that he decides that the only way to resolve it is to kidnap children and force the screams out of them, so he secretly makes a deal with Randall telling him that if he agrees to help him with his power problem he will be higher in the ranks than his arch rival Sulley. Randall agrees and builds the Scream Extractor to kidnap thousands of children and extract their screams for money (with Randall secretly planning to also rise to becoming the company's leader).
One day, Randall begins to work overtime for his mission and accidentally leaves the door to the child he had intended to steal. By accident, Sulley opens the door and the young girl (Boo) is let into the monster world for the first time, unbeknownst to everyone else.
While Waternoose is Randall's boss, he is more compassionate and well-mannered then Randall, as Randall is shown to have no concept of forgiveness and compassion. As stated by Sulley, he only cares about himself and winning, and doesn't care about anyone else, including Mr. Waternoose.
In other media
Randall is included as a playable character in Disney INFINITY and its subsequent 2.0 and 3.0 editions, playable in the Monsters University playset and the Toy Box Mode of all games.
Kingdom Hearts III
Randall Boggs makes an appearance in Kingdom Hearts III. He is voiced by Yutaka Aoyama in the Japanese version and by J. P. Manoux in the English version.
After being banished by Mike and Sulley like in the film, Randall meets Vanitas and the pair form an alliance. Vanitas fixes the door which Randall uses to return to Monsters Inc. with a desire for ambition and revenge on his old enemies. Determined to prove that laughter is unsustainable to power Monstropolis, he uses the Unversed to acquire a means for negative emotional energy and managed to weaponize the machinery in the facility.
He then quietly monitored the heroes and follows them into the Door Vault. There he tricks them before revealing himself as the one that bought the Unversed to Monsters Inc. and throughout their efforts to stop him and the Unversed, he mocks them over the intercom. Things soon start to go bad for him when one of the weaponized machines becomes unresponsive. But with help from Vanitas, he then unleashes the Unversed machine Lump of Horror onto the heroes after Mike's ignorance gets the better of them.
But despite this, the heroes defeat the Lump of Horror much to Randall's annoyance. Sulley eventually captures Randall and subdues him before sending him back through the very same door he was banished in. Sora then uses his Keyblade to lock the door for good and the door then gets destroyed again.
~ Randall whenever he hears Mike making something opinion up.
I'm in the zone today, Sullivan! Gonna be doing some serious scaring today. Putting up some big numbers!
~ Randall Boggs showing off in front of Sulley and Mike by gloating about himself becoming Top Scarer.
Shh! Shh! Ya hear that? It's the winds of change...
~ Randall proving himself to be a creep. (Mike actually says Randall's a creep after the latter quoted it.)
If I don't see a new door in my station in five seconds, I will personally put you THROUGH THE SHREDDER!!
~ Randall threatening Jeff Fungus.
So what do you think about that kid getting out, Sullivan? Pretty crazy, huh?
~ Randall talking to Sulley.
When the big hand is pointing up, and the little hand is pointing up, the kid's door will be at my station. But when the big hand points down, the door will be gone. You have till then to put the kid back. Get the picture?
~ Randall Boggs tortures Mike Wazowski.
(chuckles evilly) You still think this is about that stupid scare record?
~ Randall Boggs saying that the scare record is irrelevant to him.
Say hello to the Scream Extractor.
~ Randall introducing the Scream Extractor before attempting to use it on Mike.
(Waternoose: GET UP! There can't be any witnesses!) There won't be!
~ Randall angry and starts to do his duty of killing Sulley and Mike.
Look at everybody's favorite scarer now, you stupid pathetic waste! You've been number one for too long, Sullivan! Now your time is up! And don't worry! I'll take good care of the kid!
~ Randall tries to push Sulley off the door to his death.
Hey, what's- [laughs] Okay, very funny. I look good in a suit.
~ Randall in an outtake.
Originally, his names were Ned and Switt. He was named Ned in the early treatment and Switt in the original opening.
The crest on Randall's head may have been inspired by the possible wings of Longisquama, an extinct lizard from the Triassic period.
Randall is the second Pixar villain to be physically fought, the first being Stinky Pete.
He is the first Pixar villain to appear in a Kingdom Hearts game albeit not fought as a boss, although the Toy Box world based on Toy Story is featured none of it's villains are featured and instead replaced with Young Xehanort.
He is ranked #27 in the Top 30 Disney Villains.
For some reason, Randall is the only scarer in the first film that is referred by his first name on the Scarers' Leaderboard rather than by his last name "Boggs". At one point, this implies that Randall was actually going to be his last name rather than his first name.
In the Monsters Inc. comic book "Laugh Factory", Randall has found his way back into the monster world, and both he and Waternoose plotted revenge on Mike and Sulley with the help of Sid Phillips, the main antagonist of Pixar's first film Toy Story.
Coincidentally, one of the backgrounds Randall disappeared into in Monsters, Inc. is Andy Davis' wallpaper in Toy Story.
At one point, Randall threatens to put Fungus through the shredder. This is a reference to Carl Showalter, Steve Buscemi's character from Fargo, who was killed by being shredded in a wood chipper.
It is occasionally rumored that Randy is his middle name. However, it is actually his nickname in Monsters University.
According to the creators, Randall wouldn’t be appearing in the series Monsters at Work due to the door being destroyed/sealed off.
Though Waternoose was the main villain, Randall served as the Heavy as he did almost all the work and was proven to be more evil than him.