Grossology

In the city of Ringworm, when things get gross, then Grossogists Ty and Abby Archer are on the case! Whether it be diarrhea, farts, or insects, the Bureau of Grossology is on the case. Aided by Lab Rat, Ty and Abby take down many gross villains time and time again.

Abigail "Abby" Archer unravels mysteries so disgusting that no adult will touch them. She loves everything gross and slimy — nothing grosses her out. Abby likes to test her limits to see if there is something so gross, so slimy, and so disgusting, that it will make even her, the Queen of Squeam, turn green. So far, although she has gagged at gross sights on a few rare occasions, like in "The Slim Slime Man" and "Go Fish", nothing has succeeded in making her hurl. The only time she has thrown up was in the episode "Yack Attack", when she unknowingly drank contaminated water and felt sick. As a Grossologist, she gets covered in slop a lot, but being dirty has yet to affect her trademark ponytail.

She holds deep dislike for villains like Lance Boil, and Paige, her rival at school. On the field, she is a competent fighter, having impressive aim with her goop shooter, great hand-to-hand skills and quick reflexes, performing acrobatic maneuvers without a second thought. She is more athletic than her younger brother Ty, She has a fear of leeches, as shown in the episode "Vein Drain". She shares ownership of a kitten called Hairball with her brother Ty. Her speaking accent could be described as slightly English.

Abby has a multifaceted personality. She is very intelligent and kind, but can also be sarcastic and suspicious of others. While protective of the people she is close to, she can also be more demanding towards them. She is frank, rarely hesitating to speak her mind, and is considered the perfectionist student in class. She sympathizes with the weak and is ready to confront those who harm others, hence her dislike for people like jocks, Paige, and the villains she fights. As the only girl in the Bureau of Grossology, Abby sometimes sees things that Lab Rat and Ty fail to notice, which also occasionally highlights the differences between boys and girls. This was particularly evident in "The Greatest Race Ever Crawled", where Abby's annoyance with Lab Rat and Ty demonstrated a small but marked difference between her and the males on the team. Another personality trait that she possesses (which seems somewhat linked with the fact that she is a girl), is her sweet but sometimes excessive and inexplicable fascination with cuteness. This has, on several occasions, drawn mild annoyance and slightly sardonic remarks from her brother. She is determined and strong-willed, never once allowing Paige's teasing to depress her, although it nonetheless gets on her nerves.

Tyler "Ty" Archer is Abby's younger brother and a hard kid to face. He is extremely intelligent and studious, possessing a cool, active and analytical mind that takes everything in. He sees himself as a scientist, and he takes his job very seriously, too seriously if you listen to Abby.

In his mind, science is everything, and his goal is to be remembered with the very best in his field. He and Lab Rat share many common interests, like tech lab work. On the field, Ty pilots the GRS-1 and is great at strategic maneuvers. His quick thinking has saved the day many times. His utility pack doubles up as a jetpack. Ty owns a chemistry set at home and often does analyses on things he finds (e.g., Hairball’s hairballs).

He gets tongue-tied around his love interest, Naomi. It was hinted in the episode “Queen for a Day” that he is afraid of clowns. He is also allergic to dust mites. Ty is hinted to be the most intelligent member of the bureau of Grossology, being smarter than Abby and even Lab Rat. Also, he loves gross stuff more than his big sister Abby.

In the two-parter "Silent but Deadly", Ty gets captured by Fartor and gets brainwashed into Far-Ty. As Far-Ty, Ty almost turned the whole world into brainwashed fart breathers, but his older sister Abby saved him and made him realize what he was doing was wrong and Ty was cured of his transformation.

He also is extremely competitive and tends to get overzealous about winning any contest he's in. This has detrimentally affected the team at times; in “The Insider” he insisted on competing in a robot battle even while Lance Boil was inside his body, a choice that ended in disaster. He also once became obsessed with proving the Tymobile's abilities against Insectiva's insects, not realizing that she was setting him up.

Ty has apricot skin, blue eyes and short spiky black hair with red highlights. For casual clothing, he wears a blue t-shirt which has a black collar, brown cargo pants, black and white shoes, and a black belt that holds his communication device.

His Grossology uniform consists of an orange slime suit with two item holders on both sides, a black belt and black boots. He also carries around a rectangle backpack which can even act as a jetpack. In addition to his job attire, Ty also has a Goopshooter, a weapon used by Grossologists, as well as interactive safety glasses that have an orange frame and green lens.

The Director is stern and officious. He is the man who gives the Grossologists their repulsive assignments. And he is also incredibly squeamish. The world is full of filth and germs from The Director's perspective, and he must do everything he can to keep the city, and more importantly himself, uncontaminated. Even though he dislikes his area of work, it is still better than no job (this prompting Ty to ask his sister “what exactly does he do anyway?”). The Director is known to arrogantly enter the scene when the crime is solved and take all the credit. He claims that Abby and Ty's success is because of his “great leadership skills” and a variety of other qualities. Unfortunately for him, Abby and Ty see right through his farce and make sure to it that his ego is kept in check. That isn't hard to do, since the crime scene often unnerves The Director (For example, he once claimed to have an iron-cast stomach in front of The Detective. After sniffing Ty's Sloppy Joe induced stench, he promptly vomited on the spot. In reply, The Detective said, “Director, do you mind cleaning up your iron-cast stomach off my shoes?”). Despite his incredibly squeamish nature, he has, on one known occasion, gone into the field on his own to search for his missing agents.

Commonly, The Director can be seen wearing a gray business suit, gray pants and black formal shoes most of the time as he is only seen out of his office a couple of times in the show in which he would wear something else. Beneath the gray suit, however, he wears a blue tie and a white shirt.

When going out into the field instead of staying in his office, The Director can be seen wearing a teal slime suit which is equipped with a headgear which protects face and what looks like also has the ability to filter dangerous gasses. He is also equipped with a Goopshooter as per standard of any Grossology field agent.

Lance Boil was once a successful Grossologist, but grew tired of the grind. He quit the Grossology team for never receiving much credit. He also caused the Gag Lab to fill with pus, revealing his plan to take over the Bureau of Grossology. It is also shown that Ty played around with Lance's Shrink Ray, removing a part and causing Lance to blast himself and shrink. At first, Lance didn't like how he looked, but later on, he is shown to be very proud of his boil. After being fired from the team, he decided to use his skills to evil, with one goal in his twisted head revenge against all Grossologists; especially Abby and Ty. Deep down Lance Boil is insecure due to being short, having a big head, and having a boil on his head.

After discovering that a whiff of his stink was enough to render people unconscious, Joseph “Sloppy Joe” Puglowski vowed to never let a drop of water, soap, or deodorant touch his skin again. And thus turned to an easy life of crime, His plan: go from filthy, to filthy rich. Despite his stink, he is sometimes shown to be a protagonist, like when he retired from his job to get into the holiday spirit and works as a mall Santa. When clean, he is shown to be an albino.

Fartor or Lary is a villain from the Grossology series who specializes in anything fart related. Fifteen years ago, he was just an ordinary kid until his older brother Gary tortured him by stuffing his brother under the bedsheets and farting in there. During those fifteen years, he became adapted to breathing the gases in farts. Like a fish is out of the water, clean air is toxic for him, so he breathes the gases in farts in a dome that he wears on his body. He wants revenge on Gary.

Paige  (voiced by Melissa Altro) is a popular but very snobbish girl at Ringworm Junior High who is Abby's arch nemesis. She has been noted several times throughout the second season to have a crush on a teenage, blond-haired boy named Greg. She is the totally rich, bossy girl of Ringworm Junior High and also likes to tease everyone if they are ugly or not rich.

Paige has a perm hairstyle. She wears a violet beret and a pink turtleneck. She also wears a pink purple skirt, very light pink socks and dark purple Mary Jane shoes