Jubilation Lee/JubileeSee Jubilee
Samuel Zachary Guthrie/Cannonball
See New Mutants
A younger clone of Magneto, whom everyone thought WAS Magneto. Turns out he was just a pawn in a bigger plan, and was subsequently killed, but not before trying to get into Rogue's pants.
- Betty and Veronica: During that time when Joseph was introduced, there was a Betty and Veronica love triangle with Rogue as the center figure, Joseph as the Betty, and Gambit as the Veronica.
- Evil Twin: Joseph was a much younger 'copy' of Magneto. Since at the time Magneto was villainous and Joseph was an X-Man, he counts as a Good Twin.
- HeelFace Revolving Door: Started off as a straight clone of Magneto. He lost his memory after getting hit on the head during a fight with the real deal, and became good. After his death, Astra restored him, and implanted a copy of Magneto's old memories into his mind, making him evil again.
A former mutant terrorist. Originally created by a writer with the intention to die in a one on one fight with Storm, it was after some executive meddling and other factors that she was revealed to be still alive. Later she was picked up again as one of three new and unusual recruits to join the X-Men after a crossover (the others were Cecilia Reyes and Maggot).
At first a troublemaker for the other X-Men, she managed to become a stable and accepted part of the team. However, after some failed attempts by writers and artist to make her more appealing, she mysteriously disappeared from one issue to another, without any explanation ever given.
Afterwards she reappeared in a one-shot as SHIELD sleeper agent, was part of the ill-fated Weapon X series and finally got depowered on M-Day while keeping her mutated appearance. After a brief appearance as enemy in X-factor she was once again absent for several years. She has now returned in the 2014 X-Force series as a core cast member.
- Anti-Hero: Nominal Hero originally. She had mutant supremacist leanings and was the loose cannon on a team with Wolverine, but eventually healed and reformed during Alan Davis' run, at the end of which, she probably didn't qualify for more than Classical Anti-Hero. After that she turned to downright villain and finally back to her original form.
- Davis' attempt was seen as Character Development by many readers.
- Bare Your Midriff: Her default costume, which she often wears all the time.
- Her X-force uniform also keeps this trend.
- Blood Knight: Before Davis' got a hold on her. Back again after she disappeared. In X-force she openly states she is just there to have "fun".
- Body Horror: Her power, by the by, was to grow bones out of her body, usually in the form of outward jutting spines or claws.
- Chuck Cunningham Syndrome: Mixed with being Put on a Bus. She disappeared two issues without explanation and has only reappeared in satellite titles, she was never shown or mentioned again in the core titles.
- Dark Age of Supernames: Subverted, for someone who comes from the 90's, has the power to grow knives out of the body and was more anti than hero, she has a surprising soft and normal codename.
- This was almost played straight, as her codename was originally "Sheath," but this was rejected by the editors for sounding too sexual.
- Demoted to Extra: She was in Marvel vs. Capcom 2, then she fell off the radar in a big way. In universe, S.H.I.E.L.D. once rewrote her mind to let her think she was a normal teenager. She turned out to be smart enough to attend university, then her mind started resisting the process.
- Dual Wielding: Default combat style.
- Executive Meddling: The reason she is still alive and why someone like her joined the X-Men in the first place.
- Freudian Excuse: Well, if you'd been born with bones sticking out all over your body and had the only people who ever cared for you massacred before your eyes as a child, how well-adjusted would you be?
- Healing Factor: The other reason why she survived the heart removal, and how she can remove the bones from her body without bleeding to death. Strangely not official part of her powerset.
- Knife Nut: Marrow almost always uses bone knives which grow from her own body as weapons. She is drawn with them on nearly each cover she appears on.
- Lighter and Softer: Her development under Davis.
- Lovecraftian Superpower: Her Body Horror powers also give her some serious advantages like superhuman endurance, pain resistance, healing and strength.
- My God, What Have I Done?: Her reaction to finding out she volunteered for dangerous experiments to regain her super powers while being pregnant and having been told the risk.
- No Social Skills: Marrow is extremely confrontational and has difficulty connecting to people emotionally — or even understanding herself. Of course, living in the sewers for most of your early childhood with a bunch of other maladjusted freaks and spending your teenage years fighting for your survival in a horrible pocket dimension does that to you.
- Slasher Smile: Can pull that off towards civilians and mooks, doesn't work on actual heroes or villains though.
- Plot-Relevant Age-Up: Her first appearance was as a bald little girl before this happened to her.
- Progressively Prettier: Prime example of the trope. Part of it was deliberate in-universe: as she learned to control her powers better, there was less of the whole "bones jutting out of her at random" thing. With effort, she can maintain Cute Monster Girl status (the pink hair and the horns aren't going anywhere.) Of course, Depending on the Artist kicks in, and you can even have her looking like her Body Horror day-one self in one comic and her "cute girl with horns" look in another though both stories take place and are released around the same time.
- Remember the New Guy?: An early Retcon established her as a survivor of the Morlock Massacre storyline.
- Smarter Than You Look: She was able to memorize the entire subway and sewer tunnel system under New York as a 5 or 6 year old child. Likewise, having the time table of all subway trains in her mind. Also her short stint as sleeper agent showed that she is capable of learning and understanding scientific theories. It seems only her violent upbringing and resulting personality stops her from showing/using her intelligence openly.
- Suicide by Cop: In the fourth X-Force volume, the mutant slaver Volga (the man responsible for the loss of her unborn baby) provokes her into doing this to him following his capture and torture by the team, knowing his goose was cooked either way. This earns her a What the Hell, Hero? from Cable.
- Unskilled, but Strong: Her combat style is simply to overpower the enemy with strength and/or speed, as she learned during her childhood. However, missing any kind of formal training she is all but useless against people who can balance this out with skill as Storm quickly demonstrated.
- You Gotta Have Blue Hair: Some colorists make it brown, red or orange, but her default hair color is actually pink.
- Wolverine Claws: With enough control over her powers, she can produce these in bone form.
A hard-working New York doctor who definitely did not want to be a superhero, at all, ever. Unfortunately for her, the bad guys didn't care. She quit as soon as possible, but not before having a neat love triangle with Beast and Iceman.
- Barrier Warrior: Her forcefield powers make her near-invulnerable, but are seldom used offensively.
- I Just Want to Be Normal: She prefers to work as a normal doctor than to work in a superhero team.
- Sassy Black Woman: Though ironically she is a Puerto Rican.
- Secret Public Identity: Due to the whole 'not wanting to be a superhero at all ever' thing, she refuses to take one.
- The Medic: She still serves this role for the X-Men on occasion, including patching up Magneto after he brought Kitty Pryde back from space.
A South African teenager from a poor family. As a child, his family thought he was dying from stomach cancer because his abdomen constantly bulged and he was constantly hungry. Actually, he was going through a mutation in which his stomach turned into a pair of semi-autonomous slugs. To feed, Japheth had to have the slugs burst out of his stomach, feed on any substance, then return, giving him a burst of superstrength. Japheth joined the X-Men for only a short time before vanishing and reappearing years later to be killed in a Canadian concentration camp for mutants.
- Jive Turkey: It's South African slang, but it's often completely impenetrable.
- Lovecraftian Superpower: These seemed to be going around in the late 90s X-Books.
- Older Alter Ego: Originally Maggott is just a skinny teenager with normal skin complexion, but when he powers up by his digestive matter-eating slugs, his skin turns blue and becomes musclebound to fight.
- Shoo Out the New Guy: to a point that you'd think the Trope Namer is a Shout-Out to him!