Debut: "A Clone of My Own"
A twelve-year-old clone of Professor Farnsworth; Cubert is didactic, self-important, and snarky. The Professor created Cubert in order to have somebody to continue his tradition of half-baked inventions that are, not uncommonly, a threat to all life.
- Clones Are People, Too: A clone of the Professor, but treated just like any son.
- Deadpan Snarker: Cubert occasionally throws the quick one-liner in "A Clone Of My Own", as well as later in the series:Professor: ''Nothing is impossible! That's what being a scientist is all about!Cubert: Nnnnnno, that's what being a magical elf is all about.
- Hate Sink: Seems to be deliberately written to be unlikable with his rude attitude.
- Heterosexual Life-Partners: Cubert and Dwight (Hermes son) are best friends.
- Insufferable Genius: He belittles almost everyone, aside from Hermes' son Dwight.
- Jerkass: He's a rude, arrogant jerk to the other members of Planet Express.
- Kiddie Kid: He is a 12-13 year old who looks and acts like he's around 9. A plot point of one episode was about how he felt the need to imitate everything he saw on his favorite TV show, even if it didn't make sense.
- The Load: Deliberately written this way as a Take That! to the various "spunky kids" of certain other science fiction series.
- Not Allowed to Grow Up: The calendar moves on, but Cubert remains twelve. But then, the cancellation/renewal of the show would have put him in his twenties by now...
- Older Than They Look: He looks around nine.
- Out of Focus: Well, he was never really in focus, but he's gone from appearing several times per season to only showing up for a few seconds in Season 7 as part of a fake PSA.
- The Scrappy: Intentional/in-universe example; he's meant to parody Wesley Crusher and annoys Planet Express. He is widely considered by fans to be the worst character in the entire show.
- Teen Genius: A clone of the Professor created to continue his life's works after he dies.
- Wrong Genre Savvy: His debut appearance, he assumes that the universe operates on the same laws of physics as Real Life. It takes him most of the episode to understand that he's science fiction setting that runs on Rule of Funny.
Leo and Inez are Amy Wong's parents — and your stereotypical strict Asian archetypes. Ridiculously rich, owners of half of Mars, and desperate for grandkids. They usually show up to meddle in Amy's love life and remind her that "she's not getting any younger."
- Abusive Parents: All they see of their daughter is a walking incubator, and when she's de-aged, they outright bully her. It is implied that, should Amy have children, they'll abuse them as well when they come of age for great-grandchildren.
- All Asians Know Martial Arts: Leo pulled some out in "Into The Wild Green Yonder", nothing that impressive but enough to hold his own against Leela.
- Asian Speekee Engrish: Interestingly, they are from Mars, and dress like stereotypical U.S southerners, yet speak with these accents. Leo is aware of this and apparently took a dictation coach. Unfortunately for him, said coach happened to be Jackie Chan...
- Amazingly Embarrassing Parents: With their constant attempts to set Amy up with anything with a Y chromosome.
- Happily Married: They are usually shown as happy together, except in a throwaway joke.Leo: I'm ruined!Inez: OK, I want a divorce.
- Hate Sink: Both of them (particularly Leo) are fairly unlikable.
- The Heavy: Leo is this in the last movie, while the Dark One is the Big Bad.
- I Want Grandkids: They are so obsessed with getting Amy to have grandchildren, it almost seems like they care more about that than they care about Amy herself. To the point that when the latter got de-aged to her preteen years, they were too busy complaining about how they were never going to have grandchildren at this rate (And in Leo's case, cruelly tease Amy) to actually worry about their daughter's condition.
- Jerkass: Both of them are greedy, callous, manipulative, tend to believe that they can do whatever they want because they're rich (especially Leo, who has been the villain of a plotline more than once for precisely this reason), and are often outright antagonistic towards nearly everybody, especially their daughter.
- Politically Incorrect Villain: Leo is fairly racist (and extremely sexist as well).
- Screw Politeness, I'm a Senior!: Screw Politeness,We are Senior, in their case.
- Screw the Rules, I Have Connections!: Thinking about suing them? Well...Professor Farnsworth: Hmm, I may have mental anguish.Leo: I have you know I'm friends with every judge on planet.Professor Farnsworth: I'm alright then.
- Screw the Rules, I Have Money!: They bribed Mars University into admitting Amy. Leo was willing to pay more to get her into Phi Beta Kappa.Dean Vernon: How much you got?
Mr. and Mrs. Fry, Yancy Fry Jr., and Seymour Asses, who Fry left behind in the past after he was cryogenically frozen by accident. When he arrives to the future, he expresses joy at the thought that he doesn't have to see his family again, though very later on in the series he realizes that he just convinced himself that he hated the past because he knew he could never come back.
- Abusive Parents: They kept Fry out of school on the grounds it was a "waste of taxpayers money".
- Aw, Look! They Really Do Love Each Other: While they seemed like jerks, they all showed their concern for Fry in each of their major appearances.
- Big Brother Instinct: Yancy Jr., even if he doesn't show it if he can help it.
- Canine Companion: Seymour.
- Dad the Veteran: Yancy Sr. apparently fought in Vietnam.
- A Day in the Limelight: Yancy Jr., Seymour, Yancy Sr., and Mrs. Fry all get episodes focused on their relationship with Fry, those being "The Luck of the Fryish", "Jurassic Bark", "Cold Warriors", and "Game of Tones" respectfully.
- Dirty Commies: Seems to be a primary source for Yancy Sr.'s paranoia.
- Irony: Yancy Sr. was convinced there would be nuclear war, and prepared for nuclear radiation to, in his words, "turn us all into monkeys", and yet nuclear war never happened between the year 2000 and 3000.
- Jerk with a Heart of Gold: They are portrayed as complete boors in their first flashbacks, but later episodes (namely "The Luck of the Fryrish", "Cold Warriors", and "Game of Tones") reveal their kinder sides.
- Missed Him by That Much: They tried looking for Fry after he went missing, and failed to notice him in the cryogenic cube due to being sick from bad baloney.
- My Own Grampa: Philip Fry, As You Know, but also Yancy Fry. Part of the same paradox: Yancy had a son, Philip, Philip had a son while traveling back in time, who red then Yancy's grandson, but that grandson is Yancy himself.
- No Name Given: Fry's Mom's first name has not yet been revealed, so she is usually just referred to as "Fry's Mom" or "Mrs. Fry".
- The Paranoiac: Yancy Sr. was utterly convinced the Y2K virus would destroy the world, even believing Seymour was one of its agents when he tried leading the Frys to Fry (along with blaming it for a bad sandwich).
- Parental Neglect: Fry's parents, who are shown in flashbacks to be generally neglectful, with his mother being a Lady Drunk and his father being a Conspiracy Theorist.
- Posthumous Character: They're all deceased by the 31st century of course.
- Sibling Rivalry: Between Fry and Yancy Jr.
- Tangled Family Tree: Not as complicated as other family trees, but it's still a bit complex. A family tree that goes all the way from the Kubert Farnsworth kid to the minute-man Yancy Fry that fought in the American revolutionary war. See here for details.
Voiced by: Bumper Robinson, Phil La Marr (Dwight Conrad)
Debut: "A Flight to Remember" (La Barbara)
Debut: "The Route of All Evil" (Dwight Conrad)
Hermes has a wife, La Barbara Conrad, and a son, Dwight Conrad.
- Bare Your Midriff: La Barbara's outfit are always show off the belly.
- Happily Married: La Barbara is generally portrayed as a good wife to Hermes Conrad. She does appear to love and respect her husband, and she has supported him on several occasions.
- Heterosexual Life-Partners: Dwight and Cubert are best friend.
- Nerd: Dwight enjoys reading book about Mathematics, playing role-playing games or cosplay.
- Not Allowed to Grow Up: Like Cubert, Dwight's age is always the same.
- Statuesque Stunner: La Barbara is noticeably taller than nearly every other human we meet. She's also slim and a dark beauty.
- Ugly Guy, Hot Wife: La Barbara to Hermes.
- Unlimited Wardrobe: La Barbara has a different sexy outfit every episode she appears, sometimes more than one.
- Your Cheating Heart: La Barbara always goes over to her ex-husband Barbados Slim if Hermes is not available for whatever reason (like having his head chopped off).
Turanga Morris and Turanga Munda are two married mutants and the parents of Leela.
- Early-Bird Cameo: In the episode "I Second That Emotion", they can be seen in the background among the mutants in a few scenes, they would be properly introduced two seasons later.
- Good Reason For Parental Abandonment: Leela grew up thinking she was a one-eyed alien, when in reality she was an unusually normal-looking human mutant. Realizing she could pass for "normal," her parents left her at an Orphanarium when she was a baby with a note in an alien language, allowing her to live on the surface rather than as a second-class citizen in the sewers. When they reunite years later and this is revealed it's quite the Tear Jerker, as well as the fact that they never truly abandoned her, since the ending montage showed that they cared for and watched over her from the shadows.
- Mutants: Both have has only one eye. Morris has a sideways mouth and Munda has tentacles instead of arms.