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Marrow (Sarah) (Earth-616): Misc


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Up to date as of February 09, 2010

From Marvel Database

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Real Name
Current Alias

Sarah Rushman




Base Of Operations


5' 8"

130 lbs (59 kg)




Unusual Features
Bony protrusions


Marital Status

Terrorist; former covert operative, waitress, adventurer, and scavenger/murderer


Place of Birth

First appearance

Cable #15
(September, 1994)



Gambit rescues Sarah
As a child, Sarah was one of the underground-dwelling Morlocks. When Callisto, the Morlocks's leader, kidnapped the X-Man Angel to be her husband, Sarah came across the captive Angel. Sarah believed Angel was beautiful. He would become an idol of worship for her.

When the Marauders decimated the Morlock community, Sarah was also personally saved by Gambit, who was not yet known by the X-Men. Years later, most of the surviving Morlocks (including Sarah) were apparently killed by Mikhail Rasputin, although they were actually brought to another dimension. There, Mikhail had established a citadel for himself on the top of a massive hill. The Social Darwinist philosophy of "survival of the fittest" was the only thing which governed the society. If someone could reach the summit of the hill they were considered "fit" and worthy of being part of Gene Nation.

The former Morlock leader Callisto cared for Marrow during this period and displayed a maternal attitude towards the young mutant, although the two are not known to be biologically related. When her powers fully manifested she was forced to "up the hill", becoming more savage and killing her opponents to survive. When she managed to reach the top, Mikhail considered her fit to join his elite fighting team Gene Nation, which eventually became a terrorist group whose mission was to punish humans for their hatred towards mutants.

In that harsh dimension, time passed quickly, and when Marrow and several other members of Gene Nation (of which she had become leader) returned to Earth, they discovered only a few years had passed during their absence. Marrow and the other members of Gene Nation began a homicidal terrorist campaign against surface-dwelling humans. After inconclusive battles with the X-Men and Generation X, Gene Nation was defeated by the X-Men. Marrow wired a time bomb to her own heart to force the X-Man Storm, who had herself led the Morlocks in the past, to either yield or kill her; Storm tore out Marrow's heart. However, due to Marrow's possession of two hearts to compensate for her random bone growth and superhuman regenerative abilities, she survived.

Marrow eventually reunited with Callisto, and while they continued their terrorist activities, including and attack on a Lila Cheney concert that brought them into a battle with Cable[1], Callisto tried to hold back Marrow's more violent ways.

When Marrow and Callisto attacked Henry Peter Gyrich for his involvement Operation: Zero Tolerance, Callisto was injured by a Prime Sentinel. She directed Marrow to seek the aid of the X-Men. After teaming up with Iceman and Cecilia Reyes, Marrow went to the Xavier Institute. She joined the X-Men for a time, coming under the mentorship of Wolverine and flirting with her teammate Cannonball.

During an adventure in another dimension, Gambit, unable to control his powers, accidentally injured Marrow. She was later hospitalized on the Skrull homeworld, thanks to the alien technology Marrow gained more control over her powers, giving her a "prettier" appearance. This led to major softening of her personality, to the point where she reached out to Jubilee following Wolverine's then recent disappearance.[2] Following the reorganization of the X-Men's roster[3] she disappeared from the X-Men.

She was next seen brainwashed by S.H.I.E.L.D. under the alias of "Sarah Rushman" (an alias that had also been used by the Black Widow) used as a sleeper agent. Her mission was to terminate rogue Life Model Decoys. She had a split personality (Mutant Marrow and human teenager Sarah) and had to be periodically injected to keep her implanted memory. With Spider-Man's help, she freed herself from S.H.I.E.L.D.'s control by faking a suicide.

Marrow was later recruited by the most recent incarnation of Weapon X, who again normalized her appearance and her powers. She betrayed the Weapon X organization upon discovering their anti-mutant nature. She reformed the Gene Nation terrorist cell and, as their leader, led several terrorist attacks on Weapon X until the rest of the group was slaughtered by Agent Zero. Agent Zero left her alone, not wanting her to become a martyr, but he warned her that he would come after her again after he had hunted down the remaining members of Gene Nation.

Marrow was next seen as a spokesman of a band of Morlocks after M-Day. She gave an interview to Sally Floyd for her ex-mutant diaries. Marrow remained underground to protect and give hope to the few mutants that remained and those that feared going to the surface to live normal lives.

Marrow's interview was heavy with subtext towards the upcoming Superhero Registration Act. Marrow told Sally Floyd that the louder Congressman Sykes called for mutant registration, the easier it it would be for him to hide the truth. Americans were already labeled and registered a hundred different ways, such as social security numbers and credit cards. Such indignities afforded the privilege of police and ambulance services. Spider-Man explained that he trusted Sally Floyd because of this interview with Marrow.[4]

Marrow has since come to associate with the terrorist X-Cell, confronting Siryn and M before they could assault Blob and Fatale. She still sported several bone growths on her forehead, but depowered, she's forced to use throwing knives as weapons.

Powers and Abilities



Hyper-Accelerated Metabolism: her metabolism is the basis of what fuels her abilities to the way that they have manifested.

Accelerated Bone Growth: ability to control the growth of her bone structure. Initially this was uncontrolled, but after enhancement by a Skrull medical facility, and later by Weapon X, she can mostly control this, despite each enhancement having partially failed over time. Sarah's body generates bony protrusions which she can pull and wield as weapons, and also act as a form of protection by covering her. She utilizes this power in many ways, including the creation of knuckle guards, spears, and projectile spikes. While with Weapon X, Sarah had more control of her protrusions. She could hide them to appear normal. She could form more complex shapes and of a higher quality similar to ivory.

  • Bone Structure Durability: Her Skeletal bones seems to be also more durable than normal, she had easily survived heavy hits on several body parts. For example Flagsmasher hit her twice with his mace on the head without creating much damage and Sabretooth threw her against a wall with no result on her inner bones. She also jumped off the Brooklyn Bridge twice (something that would often result in death or broken bones) without any major damage being able to walk normally afterwards.

Healing Factor: allows her to heal from the wounds she gives herself while removing the bones from her body. Her healing factor also grows her bones quickly and regenerates her bones when they need to be replaced.

  • Enhanced Strength
  • Enhanced Agility
  • Enhanced Reflexes
Dual Hearts: She also possessed two hearts to compensate for her random bone growth, so when Storm ripped one out she was able to survive. It's possible that the first heart could have regrown due to the healing factor.


Proficiency at using blade-shaped bones as throwing weapons or in hand-to-hand combat. Marrow is an expert hand-to-hand combat, specializing in street fighting.

Strength level

Enhanced human.



Throwing knives.


  • Marrow first appeared as an adult in X-Men Prime.
  • Mike Marts, editor for the X-Men comic books, confirmed in a recent interview that although Sarah retains some of the physical attributes of her mutation, her actual mutant powers disappeared during Decimation.

However both the Marvel website and Official Handbook of the Marvel Universe A to Z #7 have stated otherwise. This way her status is still not clear since she wasn't called powered nor depowered in canon.


  • Marrow is the only Morlock who ever joined the main X-Men team as a member. Most others (e.g. Callisto, Caliban, and Leech) only helped them out as supporting characters.
  • Spyke, a male trainee X-Man possessing similar powers, appeared on X-Men Evolution, but he shared no similarities to Marrow other than his powers and the fact that he joined the Morlocks.
  • Marrow's skin, eye and hair color seem to change from artist to artist for unknown reasons.
  • In her most recent appearance in Generation M #4, Marrow can be seen in her second costume (including the unique bone structure and Caucasian skin tone), last used in Uncanny X-Men #370 from July 1999.
  • She is the only one of the four people (Joseph, Maggott, Cecilia Reyes and Marrow herself) who immediatly joined the X-Men after operation Zero Tolerance who is officially still alive. Maggot and Joesph have died, and Cecilia Reyes' whereabouts are unknown.
  • While Marrow doesn't appear directly in the House of M mini-series, she makes a little cameo appearance in issue 8. One of the news shows that the Avengers watch shows an old picture of her. It can be seen on page 17 behind the speaking bubble: "-- And we will get that information out to the public as soon as we can."

Appearances in Other Media


Discover and Discuss

  1. Cable Vol 1 #42
  2. in the lead up to "The Twelve" storyline
  3. during the six-month gap preceding the "X-Men Revolution"
  4. Civil War: Front Line

This article uses material from the "Marrow (Sarah) (Earth-616)" article on the Marvel Database wiki at Wikia and is licensed under the Creative Commons Attribution-Share Alike License.


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