Eric Jackson

Jackson is a character on The 100. He has a stable friendship with Abigail Griffin. His official occupation is unknown, however, he is shown assisting Abigail on various occasions. He may also be a nurse or doctor.

When Chancellor Jaha comes up with a plan that will literally bring the Ark to the ground, Jackson is shown in the Alpha Station along with the Chancellor.

Throughout the Series
In Pilot, Jackson and Abby theorize that the two Delinquents who died were killed on impact, because they went black at the same time they lost communication. Jackson later helps Abby operate on the Chancellor after he had been shot, but Jackson refuses to break the law by giving the Chancellor more anesthesia, even when it had to be done.
 * -|Season One=

In Earth Skills, Jackson and Abby discuss a possible signal that can be sent down to the Delinquents, but Jackson states it wouldn't work because the wristbands weren't designed to receive. Raven reveals to Jackson and Abby that the Delinquents are taking off their wristbands, and Jackson, who is shocked by this, asks why they would do something so reckless, and Abby says it's because they told them not to.

In Murphy's Law, Jackson tries his best to comfort Abby after he finds out that Clarke's wristband signal went out, but Abby refuses to believe the worst has happened, and orders Jackson to get her an analysis of Clarke's vital signs from the past two days. Jackson later warns Abby when Kane and his guard come searching for her.

In Twilight's Last Gleaming, Jackson watches as Abby shows Jake's video to the public, and watches as people volunteer for The Culling.

In Contents Under Pressure, Jackson, along with Abby, guides Clarke through Finn's surgery over the radio.

In We Are Grounders (Part 1), Jackson, along with Abby, operates on Reese. Abby is devoted to saving her, but Jackson wonders what she is saving Reese from, since the Ark is running out of air and they will all be dead within a couple of days. Abby breaks down saying that Clarke hates her because she turned in did her husband, Clarke's dad, and got him executed. Jackson comforts her by saying that Clarke doesn't hate her she is just strong willed, and it's that trait that will keep her alive on the ground.

In We Are Grounders (Part 2), When the Ark is brought down to Earth, Jackson is on one of the stations that makes it to the ground.

In The 48, Jackson sees that Kane and the others have arrived at Camp Jaha. When Jackson spots Abby, he rushes to greet her.
 * -|Season Two =

In Inclement Weather, Jackson helps Abby with Raven Reyes' surgery.

In Reapercussions, Jackson watches in sadness as Abby is shock lashed by Major Byrne ten times due to committing a crime, and he later helps treat the shock lash wounds.

In Human Trials, Jackson assists Abby as she tends to Clarke's wounds. Later, he interrupts an argument between the two, telling Abigail that she is needed in medical.

In Coup de Grâce, Jackson helps with the surgery performed on Emerson. Later, he discovers the presence of Arker blood inside of Emerson, learning that the Mountain Men have already begun harvesting the 47.

In Resurrection, Jackson arrives at Tondc with a group led by Sinclair. Sinclair explains that they saw the missile blast from Camp Jaha, and have come to help. Jackson assists in evacuating Abby and Kane and tends to those wounded in the blast.

In Blood Must Have Blood (Part 1), Jackson is apart of Indra's group that is planning to enter Mount Weather through the mines. When Reapers attack, he uses the tone frequency to disable them and then injects them with a substance that knocks them unconscious. Shortly after hearing the horn signalling the retreat, he watches as Octavia and Indra argue over whether to follow orders or not. Afterwards, as Indra and the Grounders leave, he asks Octavia to come home with them. She responds by saying that she has no home. Jackson gives her a bag of supplies and tells her that she'll need it before turning around and departing with the rest of the Arkers.

In Blood Must Have Blood (Part 2), Jackson is seen at Camp Jaha as the Arkers return from Mount Weather. He spots an injured Abby and then rushes forward to assist with the wounded.

Personality
Jackson, like most everyone on the Ark, is a law abiding citizen. He expresses no desire to break the rules, as shown when he refuses to give the Chancellor more anesthesia. Jackson will even voice his opinion when someone else tries to break the rules. However, Jackson also cares for his friend Abigail Griffin and shows a high level of devotion to her.

He seems to have a strong moral compass and does not waver from his ideals and morals.

Physical Appearance
Jackson has an olive complexion, dark brown eyes, and black hair. He wears simple clothing. Jackson has a thin build.

Relationships

 * -|Abigail Griffin =

Abigail Griffin
On the Ark Abigail is a good friend and co-worker of Jackson's. Although they do not always see eye to eye, the two generally get along very well. Jackson listens to Abby and respects her, even when they disagree on the course of action to take, such as in the Pilot when Abigail breaks the law to save the life of Chancellor Thelonious Jaha. Jackson seems to trust Abigail more than any other Council member, including the Chancellor. When Marcus Kane searches for Abby, suspecting she is doing something illegal with Raven Reyes, Jackson calls her to warn her allowing Raven to have enough time to launch the repaired escape pod while Abby stays on the Ark. On what they think are their last few days to live (We Are Grounders (Part 1)), Abby and Jackson are seen together operating on a young girl who was hurt in the bomb blast on Unity Day. When the surgery isn't going well Jackson says they, "never should've opened her back up," Abby fight for the girl's life, but she can't be saved. As the heart monitor goes silent and the child dies on the table Abby says, "I failed," and Jackson tries to comfort her while she cries, telling her Clarke doesn't hate her and is just "strong-willed like her mom." He then sends her out of the operating room.

Quotes
Jackson: "Ballsy kid."

Abby: "Yeah, reminds me of someone."

Kane: "How much blood did you use, Abby?"

Jackson: "Don't answer that."

Notes and Trivia

 * Jackson refused to break the law, even to save his own Chancellor.
 * In Murphy's Law, Jackson warned Abigail when Marcus Kane and the Guard came searching for her.