Voiced by: Kath Soucie
- Anti-Hero: Lucien's ends can be sometimes skewed by his self righteousness or obsession with spiting his brother, but usually he's the most moralistic of the family.
- Adorably Precocious Child
- Brainy Brunette
- He Who Fights Monsters: A more subtle case, but sometimes the scars from Wayne's constant bullying play into his zeal.
- Insufferable Genius: Lucien is very smart especially when it deals with wildlife. However, this often has others be annoyed at him.
- Jerk with a Heart of Gold: Lucien isn't a saint like the majority of cast but he's definitely a lot nicer than Wayne and is willing to help out others.
- Only Sane Man: Lucien is pretty much this whenever Wayne causes a problem and nobody believes Lucien that Wayne did it.
- Rightly Self-Righteous: Lucien always consider himself as the solution to almost every problem. Especially if said problem has to do with the wildlife.
- Soapbox Sadie
- Straw Vegetarian: Due to his love of the wildlife, Lucien is a vegetarian to the point he is willing to wear organic underwear.
- Smart People Wear Glasses
Voiced by: Tom Kenny
- Amazing Technicolor Population: Has blue skin, in contrast to his normal-skinned brother.
- Anti-Hero: One of the main characters but is far from being a good guy.
- Bald of Awesome/Bald of Evil: Wayne isn't completely bald (he has strains of hair on his head) but definitely less hair than his twin Lucien. However, he is very good at constructing things out of junk and his main hobby is bullying/torturing Lucien and other kids.
- Berserk Button: Wayne has a lot but the ones that set him off the most is touching his junk and Lucien. Hell, he even has a Lucien picture with a cross mark on his door.
- Bitch in Sheep's Clothing: Even has a trademark "good boy voice" around his parents.
- The Bully: Whoo boy is he ever. Partially anyone is a target of Wayne's bullying ESPECIALLY Lucien.
- Catchphrase: Wayne often says "Aces!" whenever something excites him and "Get bent!" toward others that annoys him.
- Enfante Terrible/Kids Are Cruel: As stated above, Wayne's main hobby is bullying and torturing other children but Lucien especially.
- Foolish Sibling, Responsible Sibling: With Lucien
- Gadgeteer Genius: The only thing Wayne is good at besides bullying people (mainly Lucien) is building stuff out of junk.
- Jerk with a Heart of Gold: Once in a while, he will show some decency. He is also pretty good friends with Dirty Joe who is pretty much the only person Wayne treats well.
- Laughably Evil: Wayne may be a bully but some of the stuff he does to others is downright hilarious.
- Lovable Rogue: During his better moments. Otherwise the "lovable" part varies.
- The Nicknamer: He often gives insulting nicknames toward others he doesn't like. He has a LOT for Lucien but is partially fond of calling him "Girl Pants."
- The Pig Pen: Adores garbage, to his parents' ire.
- Sweet Tooth/Trademark Favorite Food: Wayne LOVES sugar-related food and drinks and will only eat things loaded with sugar. In fact, if Wayne doesn't eat any sugar for awhile, he will get weak and start speaking gibberish.
- Villain Protagonist: He's pretty much the secondary main protagonist behind Lucien but he is far from being a good guy.
- Why Did It Have to Be Snakes?: Wayne is terrified by most creatures of the swamp but frogs are the creatures that frighten him the most.
Voiced by: Nicole Oliver
- Anti-Hero: Like most of the cast. Her obsession of keeping everything clean has lead her to doing questionable things.
- Berserk Button: Dirt.
- Depending on the Writer: Which of the twins does she favor?
- Jerkass: At times.
- Jerk with a Heart of Gold: In reality.
- Mama Bear: She may be a Neat Freak but she will not tolerate anyone mistreating her sons. Ms. Hissy found this out the hard way.
- Neat Freak: and how!
- Parenting the Husband: She once grounded Mr. Cramp for accidentally spilling coffee.
Mr. Neville Cramp
- A Day in the Limelight: Any episode that deals with the rodeo or has a focus on it, expect Neville to be the main focus.
- Bumbling Dad
- Butt-Monkey: Mr. Cramp is arguably the biggest one in the show as he is often taking abuse from everyone that knows him. This includes his wife, his sons (especially Wayne), his boss, and even his boss' daughter!
- Henpecked Husband
- Middle Name Basis: Not really but in the episode "Home on the Range," Mr. Cramp revealed his middle name is Neville thinking that his boss, Mr. Winkle, was trying to refer to him by that name.
- Nice Guy/Jerk with a Heart of Gold: Out of the Cramp family members, Neville is definitely the nicest. However, there are times he has sided with Wayne and will often neglect Lucien.
- Parental Favoritism: It's made pretty clear in a bunch of episodes that Mr. Cramp prefers Wayne over Lucien as Mr. Cramp will commonly go along with Wayne's plans or even pick up some of his habits (like being obsessed over a video game in one episode).
- Wacky Parent, Serious Child: With Lucien.
- All Girls Want Bad Boys
- Evil Is Petty: Incredibly vindictive in her materialism. Once stole a toy of Tony's sister seemingly for the sake of having it. When capturing a (supposed) new species of animal from the swamp, she demanded her father drive it to extinction just so she'd have the only one.
- Girly Girl with a Tomboy Streak: She likes dolls and tea parties but she also likes doom buggies.
- Jerkass: And that doesn't even begin to describe her.
- Jerk with a Heart of Gold: But these moments are far and in between.
- Laser-Guided Karma: In one episode, she takes one of Tony's toys out of spite, her own toys then begin to develop fungus.
- Rich Bitch
- Spoiled Brat: "Yes"
- Screw the Rules, I Have Money!
- Bald of Awesome
- Heterosexual Life-Partners: With Lucien.
- Only Sane Man: Along with Lucien.
- Nice Guy: Tony is pretty much the nicest character in the series.
- Bald of Awesome: Like father, like son.
- Nice Guy: Like his son, he's one of the nicest people in Soap City.
- Reformed Criminal: He was once the sidekick of a criminal known as "The Bad Seed."
- Black Sheep: Of her adopted family.
- Fiery Redhead
- Granola Girl
- Only Sane Woman: Even more so than Lucien.
- Perpetual Frowner: Mari's default expression. She is capable of smiling but doesn't show it too often. Considering how her family is, this may be intentional.
- Smart People Wear Glasses
- Vitriolic Best Buds: She and Tony are friends but they often argue a lot. Hell, during the ending credits, one of the images that are show is Mari and Tony staring angrily at each other.
- Affably Evil: Sometimes.
- Bald of Evil
- Corrupt Corporate Executive: Often rebrands failed products in order to make a quick buck.
- Dark and Troubled Past: Heavily implied to be a former swamp person. Frequently blackmailed by the Parsons family over this information.
- Jerkass: Especially how he treats Mr. Cramp.
- Jerk with a Heart of Gold: Much like with Wendy these are far and in between.
- Pet the Dog: He dotes over Wendy endlessly.
- Rich Bastard
- Screw the Rules, I Have Money!: Ironically, it's his daughter who abuses this more out of him.
- Child Hater
- Jerkass: YES! Even WAYNE is a saint compared to her!
- Jerk with a Heart of Gold: In a good mood. Shown when she actually treats Lucien better than most people.
- Sadist Teacher: Comes with being a Child Hater.
- Badass Mustache
- Dean Bitterman
- Generation Xerox: Apparently, both of his parents bullied the parents of the Cramp Twins as well.
- Jerk with a Heart of Gold: Occasionally.
- A Day in the Limelight: The episode, "Homeless Joe", features Dirty Joe's largest role in an episode to date.
- Cool Old Guy: Joe isn't that old but he's definitely one of the oldest characters in the series and he is definitely a pretty nice guy. When he temporary lived with the Cramps, he didn't want to help himself to their food and instead asked Wayne to get something for him. He was also willing to take a bath since he doesn't mind trying anything new. Also, he is one of few people that treat Wayne well and Wayne returns the favor.
- The Faceless: Joe's face is never seen in the series. However, we do mostly seen his lower body especially in the episode "Homeless Joe."
- Friend to All Living Things: A bit subverted here. Thanks to Dirty Joe's disposition, animals all alike are attracted to him by the way he smells. However, Joe himself doesn't appear to like animals considering he swatted away a dog that was sniffing him and fled as soon a heard of animals was going after him.
- Only Friend: Joe himself has a lot of friends but Joe is the only person that Wayne treats well at every occasion.
- Only Known by Their Nickname: Dirty Joe's real name is never revealed and only goes by that name for the reason below.
- The Pig Pen: There IS a reason why he is called "Dirty Joe." Especially the fact he lives in the middle of a junkyard.
- Berserk Button: Brick appears to have a lot but he really seemed to got upset when Wayne called him a "bully."
- Big Eater: Brick can really get food down really quick as shown during dinner time with the Cramps. He also mentions to Lucien that he and his dad used to eat nothing but five pound steaks.
- The Bully: Worse then Wayne.
- Charles Atlas Superpower: Brick is arguably the strongest character seen in the show (besides his older sister Lily and possibly his mother). The fact that the area shakes whenever he walks and that he can easily break tables just by pounding them is a testament to this.
- Disproportionate Retribution: It really looked like Brick was going to hurt Wayne just for accidentally stepping on his shoelace.
- Disappeared Dad: Brick mentions his dad a lot in the past tense either indicating his dad is away or is dead. Turns out later in the episode his dad is alive and well but is a total wimp. However, turns out that wasn't his dad but his stepdad and his real one is off building a skyscraper.
- Even Bad Men Love Their Mamas: He doesn't take Lucien implying that his Mom pushes him around well.
- Evil Feels Good: After destroying Wayne and the other kids in a game of dodgeball, he laments on how he wishes his dad could see him now clearly enjoying bullying other kids.
- Fastball Special: At one point during a game of dodgeball, he uses Wayne as the ball to throw at the kids.
- Freudian Excuse Is No Excuse: Lucien invokes this on him at the episode by telling him that just because his Mom pushes him about doesn't give him an excuse to push other people around.
- Hypocritical Humor: As stated above, one of Brick's biggest berserk buttons is being called a "bully." However, considering he loves to push Wayne around physically abuse him and other kids, it's very clear he's a bully especially since he enjoys what he does.
- I Just Want to Have Friends: Brick seemed really touched that Wayne wanted to be his friend. However, this most likely meant that Brick could find someone to bully on a daily basis which he does.
- Jerkass: To a point where even Wendy was disgusted by his behavior and attempts to prompt the other kids into attacking him.
- Why Did It Have to Be Snakes?: Brick is terrified of women that are larger than him. This is because of his Big Sister Bully Lily.
- Broken Ace: To Mr. Cramp after seeing her as a fraud for not being a true cowgirl.
- Jerk Ass: Oh most definitely so. Don't let that nice girl act on the t.v. and radio fool you.
- Nice Character, Mean Actor: Rodeo Rita is a very nice person when she plays the role in front of kids. However, when she is not, she's one of the biggest jerks of the show.
- Battlecry: Cougar Ron, before fighting an animal, lets out a roar that is the sound of a cougar.
- Black Comedy Animal Cruelty: Cougar Ron makes a living by beating the tar out of animals. However, this is later subverted as the animals aren't even real and are computer generated.
- Curbstomp Battle: Almost every animal that Cougar Ron is shown facing gets beaten pretty easily by him with only the Colossal Swamp Squid giving him some trouble. Subverted as the animals aren't even real.
- Expy: Ron is definitely an expy of Steve Irwin, The Crocodile Hunter.
- Jerk Ass: Of course. Cougar Ron took great pleasure in tormenting and humiliating Wayne who was obviously afraid of the swamp.
- Nice Character, Mean Actor: This is a bit complicated. Cougar Ron has no problem assaulting (fake) animals but Wayne says he only does it to animals that are "really asking for it." The fact he doesn't actually hurt real animals and has a bunch of fans does fit into the "nice character" part. The "Mean Actor" part comes from how he treated Wayne during the episode.
- The Reveal: That Cougar Ron doesn't fight real animals and that they are computer generated.
- Show Within a Show: Cougar Ron is the host and star of his own show "Cougar Ron's Wild Wild Animal Show."