Tom Sciarello
Chief Medical Officer of the Aegis VII Colony
Dr. Thomas Sciarello was the Chief Medical Officer of the Aegis VII Colony, an atheist physician who came to suspect that Marker 3A was behind the colony's wave of madness. He was killed by Slashers as the outbreak overran the medical labs.
Dr. Thomas Oliver Sciarello was the Chief Medical Officer of the Aegis VII Colony, a confirmed atheist who, as the discovery of Marker 3A drove the colony toward madness, became one of the first to suspect the artifact itself was to blame. He died when Slashers ambushed the colony's doctors in the medical labs during the Necromorph outbreak. (Dead Space (comic))
The Aegis VII incident#
A firm atheist, Sciarello was deeply confused by the events that followed the discovery of Marker 3A on the Aegis VII Colony, as more and more colonists came to his clinic with symptoms of depression and insomnia. He began to see visions of his dead nurse, Katie Evans, who had been murdered by the paranoid miner Brant Harris. Coming to suspect that the Marker was behind the spreading wave of paranoia and violence, he went so far as to secretly test it for radiation, and he was repeatedly attacked by patients the artifact had affected. (Dead Space (comic))
Together with P-Sec Sergeant Abraham Neumann, Sciarello tried several times to convince the colony manager Hanford Carthusia to abandon the mining project given the number of violent incidents, but their requests were ignored. (Dead Space (comic))
Death#
Following the planet crack and the near total blackout of the colony, Sciarello set out to find the backup generators, only to be stopped by a vision of Katie, who told him it was too late. He soon discovered that the entire colony was under attack. He and several other doctors went to the colony's medical labs, expecting the wounded to seek help there. In the morgue he noticed that the bodies of the Unitologists who had taken their own lives in Union Square were gone. The group was then ambushed by Slashers clinging to the ceiling, and one of them impaled Sciarello through the forehead. (Dead Space (comic))
Frequently asked questions
- Who was Tom Sciarello?
- Dr. Thomas Oliver Sciarello was the Chief Medical Officer of the Aegis VII Colony. He ran the colony's clinic when the discovery of Marker 3A triggered an epidemic of depression, insomnia, and violence.
- What did Sciarello suspect about Marker 3A?
- As more colonists arrived at his clinic with the same symptoms and he began having visions of his murdered nurse Katie Evans, Sciarello came to suspect that Marker 3A was the cause of the spreading paranoia and violence. He went so far as to secretly test the artifact for radiation.
- How did Tom Sciarello die?
- After the planet crack and the near total blackout of the colony, Sciarello gathered with other doctors in the medical labs to help the wounded. In the morgue they discovered the bodies of suicide victims were missing, and the group was ambushed by Slashers clinging to the ceiling, one of which impaled Sciarello through the forehead.
Sources
- ComicDead Space (comic), Antony Johnston and Ben Templesmith, Image Comics, 2008
Spotted a factual error or a primary source we missed? Email a correction. Every flagged claim gets reviewed.
Followed from this entry

Abraham Neumann
Abraham Howard Neumann was a security operative in the Aegis VII colony who suspected the Red Marker was behind the madness spreading among the colonists. He survived the early outbreak but vanished after fleeing the infested communications needle.

Brant Harris
Brant Harris was an Aegis VII miner driven to violence by exposure to Marker 3A, transferred to the USG Ishimura for treatment, and, in the 2023 remake, turned into the Hunter by Dr. Challus Mercer's experiments.

Hanford Carthusia
Hanford Carthusia was the Unitologist project manager of the Aegis VII mining colony at the time of the Second Aegis VII Incident. His devotion to the Red Marker and his refusal to heed warnings about the spreading violence helped doom the colony, and he offered himself to a freshly reanimated Necromorph in the morgue.

Aegis VII Colony
The Aegis VII Colony was an illegal mining settlement built on Aegis VII by the Concordance Extraction Corporation. After the discovery of Marker 3A in 2508, the colony fell into madness and was overrun by Necromorphs before being destroyed in the planet crack.

Marker 3A
Marker 3A was a Red Marker grown by the Sovereign Colonies and placed on Aegis VII for study. Two centuries later it was unearthed by the Concordance Extraction Corporation, triggering the outbreak aboard the USG Ishimura and imprinting its blueprints into Isaac Clarke's mind.

Marker
Markers were enigmatic double-helix obelisks that broadcast a signal capable of reanimating the dead, driving the living to madness, and seeding their own replication. Their purpose was to spread the Necromorph infection across intelligent civilizations until a Convergence Event could form a Brethren Moon.
Mentioned in5 entries
Hanford Carthusia
Hanford Carthusia was the Unitologist project manager of the Aegis VII mining colony at the time of the Second Aegis VII Incident. His devotion to the Red Marker and his refusal to heed warnings about the spreading violence helped doom the colony, and he offered himself to a freshly reanimated Necromorph in the morgue.
Jerry: Technician of the Aegis VII Colony
Jerry was a technician of the Aegis VII Colony and the working partner of Natalia Deshyanov. Punished for a botched repair job, the pair were assigned to build the tram line to Marker 3A and then to guard the artifact itself, where Jerry watched his partner slide into obsession before both vanished into the chaos of the colony's fall.
Jonn Welland: Psychiatrist of the Aegis VII Colony
Jonn Welland was the clinical psychiatrist of the Aegis VII Colony, who worked beside Chief Medical Officer Tom Sciarello to treat the wave of psychological disorders that Marker 3A inflicted on the colonists. After the planet crack he went to the medical lab to receive the wounded, found the morgue stirring with dormant Necromorphs, and was presumably killed there.
Katie Evans: Nurse of the Aegis VII Colony
Katie Evans was a nurse on the Aegis VII Colony and the personal assistant of Chief Medical Officer Tom Sciarello, whom she served for five years. She was killed by the Marker maddened miner Brant Harris during a hostage incident at the colony clinic, and her image later returned as a hallucination that urged Sciarello to protect the Marker.
Vera Cortez
Vera Maria Alejandra Cortez was a P-Sec detective and devout Unitologist on the Aegis VII colony, partnered with Sergeant Abraham Neumann. Swept up in the Marker's influence, she joined a mass suicide and was later seen absorbed into the Corruption.
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