Absentia Season 3 marked the final chapter for FBI agent Emily Byrne. This season saw Emily facing a scary global crime group called Meridian. This group constantly threatened Emily, her son, and her former partner, Nick Durand. Meridian was a major operation. They were involved in serious crimes like moving people illegally and developing dangerous weapons.
The biggest puzzle during this time was finding the high-level traitor. Someone important was giving Meridian secret information. This person was the mole who helped the criminals stay hidden. The question, "Who is the mole in Absentia Season 3?" became the main mystery of the last episodes.
The mole in Absentia Season 3 turns out to be Julianne Gunnarson, the FBI’s Deputy Director. She spent years feeding Meridian secret information and using her position to hide their crimes. Her betrayal shocked the entire team, especially because she had been trusted at the highest level. The truth comes out only after Julianne kills Alice Durand and admits she was the insider all along.
Absentia Season 3: Real identity of the mole

The intense search for the insider
The events of Absentia Season 3 placed Emily in a difficult spot. She was wrongly blamed for a murder. So, she had to run away from her own country. Emily hunted Meridian not just to clear her name, but also to keep Nick and her son, Flynn, safe. The dangers were very real.
Meridian seemed to know every step the FBI took. This confirmed that a traitor was working inside the agency. Finding out who the mole is in Absentia Season 3 was the only real way to take down Meridian for good.
Emily and Nick traveled across different countries, working together again. They uncovered many betrayals and sad truths. Each new fact suggested that the mole held a lot of power. They realized the traitor was likely someone Emily knew well or even an FBI leader. This shocking idea created high tension and suspense throughout Absentia Season 3. The team could not trust anyone.
Julianne Gunnarson
The true identity of the mole was a massive surprise in Absentia Season 3. The person sharing FBI secrets with Meridian was Julianne Gunnarson. Julianne held the high rank of Deputy Director at the FBI. This role made her a trusted leader. The reveal greatly upset everyone on Emily’s team.
Because Julianne was the mole, she had been planning things secretly for a long time. She used her high-level access to hide Meridian's activities. Then, she gave the crime group information about all the active investigations. Julianne was a key player in the organization. She was not just helping out.
Her reasons were complicated, but they included personal reasons and a wish for power within Meridian. Her position meant she went unnoticed for much of the season. The answer to "Who is the mole in Absentia Season 3?" finally came out. It showed that a respected leader was actually the enemy.
The involvement of Alice Durand

The investigation led to another startling fact during Season 3. Nick’s new wife, Alice Durand, was also tied to the Meridian group. Alice’s involvement made things much harder for Nick and the rest of the crew. Alice was not the main traitor, but she helped the crime group in important ways. She often acted as a contact person for the criminals.
During a final face-off, Julianne Gunnarson shot Alice. Julianne did this to stop Alice from telling everyone about the rest of Meridian’s leaders. This desperate and public action showed Julianne’s guilt completely. She then told the police that she was the mole and that she had killed Alice. Julianne’s arrest ended her long period of betrayal.
Absentia season 3: Ending the story
The end of Absentia Season 3 brought a kind of peace for Emily and her friends. Julianne Gunnarson was in jail, and the Meridian group was seriously weakened. The immediate threat was finally over. Emily then decided to leave her FBI job. She chose to look for a new life, focused on healing and calm.
The full storyline of Season 3 proved how dangerous corruption inside an agency can be. The intense mission to discover the answer to the mole's identity challenged everyone's loyalty. The fact that an FBI Deputy Director was the traitor made the victory feel complex. It showed that bad people sometimes look very respectable. The series ended with a sense of completion. Emily was finally free to move on.