The best way to describe Aaron Callum Marcus is a curmudgeon. Most people when they first meet him do not care for him. However, despite his faults he cares immensely about his patients. His biggest passion is to cure the incurable. He is sent to serve on the Nogura as most people do not want anything to do with him. Sarcasm and wit are his usual defenses. All of that said if one could cut through his rough exterior they would find a fierce and loyal friend.

Physical Profile

  • Height: 6 Foot 2
  • Weight: 207lbs
  • Eye Colour: Blue
  • Hair Colour: Brown and Graying

Aaron is tall and lanky. He is in good shape for his age although there is no muscle to be seen. He is of moderate strength. His intelligence however is through the roof. His eyes are his most endearing quality a deep blue and they penetrate. He walks with a limp and a cane due to a transporter accident.

Personality Profile

Aaron frequently shows off his cunning and biting wit, and enjoys picking people apart and turning peoples weaknesses into a learning experience for them. Aaron accurately deduces people’s motives and histories from aspects of their personality, appearance, and behavior. His friends and colleagues say that while some doctors have the “Messiah complex” (they need to “save the world”), Aaron has the “Rubik’s complex” (he needs to “solve the puzzle”).

Personal Information





Starfleet Command


USS Nogura


Chief Medical Officer


Lieutenant Commander

Annual Starfleet Performance Review

Admiral Vendish Torgan, Director, Starfleet Medical

Dr Aaron Marcus is single handedly the most talented physician I have known and the most arrogant. To say he has a god complex is to say the very least. However, despite his personality flaws he is a caring physician. Marcus will work tirelessly to cure any disease the presents itself to him. One would expect nothing less from the great grandson of Dr Carol Marcus. His greatest flaw is also his greatest asset. This is something that I encourage anyone who commands Marcus to look out for. He has to solve the puzzle, at any cost he needs to have an answer. Despite his talented research and assistance in setting up the Diagnostics Department we at Starfleet Medical feel that he is best used on the edge of space, healing the sick and injured and curing the incurable. I have no doubt that any ship that gains Dr Aaron Marcus will gain not only a skilled physician but a trusted advisor and tireless advocate. They will also gain a giant headache.


Aaron was born on June 11th 2320 in Oxford, Oxfordshire, England. He was the youngest of four children. His father was a general doctor, who specialized in internal medicine and his mother was physicist. Both had dizzying intellects so his childhood was very competitive.

Growing up Aaron lived in two worlds in a way. To his parents he was the golden boy. Not only did he have the genius intellect, but he was the youngest and he could do no wrong. He excelled at the sciences and in the medical field, it seemed that he indeed got the best of both of his parents. To everyone else he was just a cantankerous youth who was angry at the entire galaxy for reasons unknown.

He was a bookish child wanting to keep his nose in the book studying rather than going outside to play. In fact he read anatomy books as a way to have fun. He had little two close friends that he was fiercely loyal to and they in turn were loyal to him. He avoided social situations for the most part viewing them to be trivial and of no consequence. Aaron’s childhood reputation was that he was the “fixer.” If you had an issue or a problem that needed solving he was the man to see.

In the year 2330 when he was 10 years old Aaron’s life was changed forever. His father, who he looked up to more than most, changed jobs. His father went from being a local doctor and home for the most part, to the director of neurology at Starfleet Medical in San Francisco. His father commuted to and from work and due to this was not around for much of the rest of Aaron’s childhood. Aaron vowed that he would always put his family first when it came down to it.

Aaron’s first love was a girl in junior high school. Her name was Shoshanna and she was very much like him, an outcast. She was not very well liked because of the way she acted to most other kids, she would treat others like she was better than them. That is until she met her match in Aaron, the two taught each other many things. Among them was she taught him the ability to treat people more than the sum of their parts and he in turn taught her how to be more down to earth. Aaron stayed out of trouble through his childhood, learning very quickly how to ignore remarks or respond to them with remarks of his own in kind. He developed the ability in junior high school to turn people’s weaknesses into a learning experience for them.

Aaron’s largest aptitude seemed to be medicine. However, it was in the diagnostic field of medicine. He loved the mystery that incurable diseases presented and relished in solving them. He learned not only how the body worked, but how it reacted to diseases. Once he mastered the human body he moved on to other species, such as Vulcans, Andorians etc…

His general schooling went by basically uneventful. That is to say he experienced nothing that a normal boy did not do or experience. He graduated High School as the Valedictorian, which was no surprise to anyone due to his grades and his excelled classes. His grades earned him a spot at Starfleet Academy. This was what Aaron wanted, as he wanted to get away from the bonds that Earth presented for him. His parents were not fond of this as they wanted him to become a local doctor like his father and settle down.

Aaron’s years at the Academy were some of the best of his life. It was here that he met his best friend Walter Kaedle. Walter was a Sciences major and the two hit it off. Aaron centered Walter and made him concentrate on his studies and in turn Walter caused Aaron to loosen up. The two became practical jokers and were issued a formal reprimand for a joke that they pulled on the Commandant of the Academy. It was to be the only blemish on Aaron’s otherwise stellar record.

Aaron graduated Starfleet Academy in the year 2342 as Valedictorian, and was granted the rank of Ensign. While at the academy he majored in molecular biology. He was immediately transferred to Starfleet Medical to enroll in medical school, seeking his MD. He majored in Diagnostic Medicine, with a sub-specialty in Emergency Medicine. It was the diagnostics that appealed to him the riddles of disease he called them. His years at Starfleet Medical were uneventful, however, Aaron resented the place as he was constantly referred to as the junior Dr Marcus as his father worked there.

At the age of 24 Aaron graduated medical school and was given his first deep space assignment. This assignment was to serve as the young doctor’s residency. This assignment was to the USS Rhode Island as a Medical Officer. The now Ensign Marcus did not make many friends on the Rhode Island however, he was respected the man could diagnose anything in less than a hour for most cases. The medical crew aboard the Rhode Island went as far as challenging Aaron to beat the EMH in treating patients and Aaron won by a landslide.

In the year 2346 Dr Marcus, as he preferred to be called, was transferred to the USS Poseidon to serve as a Medical Officer and the Ship’s Surgeon. His department chief was a Vulcan, who’s father suffered from Bendii Syndrome. Aaron regarded the Vulcan in very high esteem and used all of his free time as well as his degree in molecular biology to attempt to cure Bendii Syndrome. Aaron’s research into this disease continues to this day and he is convinced that he will find a cure.

In the year 2349 the Poseidon was sent to Draven IV to assist in a severe outbreak of the Endozian Flu. Marcus quarantined himself, purposely infecting himself with the disease on the planet. While there he used his own infected blood to develop a cure and vaccine for future use. He is promoted to Lieutenant Junior Grade for his act of heroism.

At the age of 30 he is transferred to the USS Washington to serve as the Assistant Chief Medical Officer. It was here that he began to learn how to command and manage a department. He especially learned how to set aside his general misanthropic views in order to get along with people.

Five years into his service aboard the Washington the ship’s Captain was stricken with a disease that was previously unknown to science. Dr Marcus put his degree in diagnostics to good use and figured out that the disease was one infected the blood. The red blood cells were exploding in the Captain’s vessels. Aaron instituted immediate transfusions and eventually cured the disease. He named it after its first patient, and thusly Hemocefjim was born. Aaron was granted promotion to Lieutenant for this great feat.

In 2356 he was transferred to the USS Ticonderoga to serve as the Chief Medical Officer. It was during this assignment that the event that shaped his life the most was to happen.

About eight years into his service aboard the Ticonderoga Aaron was a victim of a transporter accident. While beaming up from Dreya V after a mission of mercy the transporter lost a small section of his pattern. This resulted in him being re materialized without part of his quadriceps muscle. He was paralyzed from the waist down. Aaron was stabilized by the Ticonderoga’s medical staff and sent to Starfleet Medical for definitive treatment and rehabilitation. This accident also resulted in Aaron’s hatred of the transporter system.

The next two years of his life was merely getting back on his feet and getting his life back together. If it were not for Aaron’s roommate, a recovering Starfleet Marine he would have sunk into a pit of self pity and hatred and disappeared from everyone. As a result Aaron is forced to walk with a cane for the rest of his life.

In 2364 at the age of 44 Aaron is released from Starfleet Medical and given clearance to return to duty. He is assigned as the attending physician to the Incurable Diseases Department at Starfleet Medical. Here he creates a team of young doctors with the sole purpose of deciphering unknown diseases. He closes in on himself and maintains no friends during this time. With exception of his long time friend Walter, and his new friend in the Marine Corps Robert Schiano.

Two years later he takes his team and creates the Diagnostics Department for Starfleet Medical. This is done after a long fought battle to prove that it was needed. The fact that Aaron deduced that an infectious outbreak could occur at any moment on Earth that they let him create the department. He is promoted to Lieutenant Commander for distinguished service to Starfleet Medical.

In 2368 at the age of 48 Aaron receives news that was a mixed blessing. He was called into the Director of Starfleet Medical’s office and informed that since no one at Starfleet Medical wanted to deal with his quirks, he was to be transferred to the USS Nogura to serve as Chief Medical Officer. As much as Aaron was perturbed that he would have to leave Earth for starship life again, he sensed that something big was on the horizon.