|For alternate versions of Ruben Mackenzie, see Ruben Mackenzie's Character Hub|
- "This is how they get you. System's rigged. They want to keep you down and in the dark."
- ―Ruben Mackenzie[src]
Ruben Mackenzie is the younger brother of Alphonso Mackenzie who became tempted to join the Watchdogs as both his fear of the Inhumans and frustration with his government grew. However, when Mackenzie discovered that his brother was an Agent of S.H.I.E.L.D., he found himself a target of the Watchdogs and rethought his views.
Ruben Mackenzie grew up with his older brother Alphonso Mackenzie, who he always got along with as the two brothers shared an interest for motorbikes and mechanics. They even planned to do a trip to Baja California, but Alphonso never found an occasion to join his brother. Indeed, unbeknownst to Mackenzie, Alphonso worked as a S.H.I.E.L.D. agent, but pretended to be a simple insurance agent. Mackenzie on his side found a job, but he was eventually fired.
Following his dismissal, Mackenzie had trouble making ends meet, caught between his debts and the mortgage of the family home. While browsing the Internet, he found pieces of the Watchdogs propaganda and progressively became convinced that the anti-Inhumans hate group was right in its fight against the government.
The Truth Revealed
Mackenzie and Alphonso Mackenzie spent some time together in the family home. While watching the news, they saw the images of the Attack on the ATCU Storage Facility perpetrated by the Watchdogs, an act Mackenzie found amazing. Following the attack, Alphonso declared that he had to go for a few hours, much to Mackenzie's disappointment as they had planned to work on their motorbikes.
Mackenzie remained alone in the house, drinking beers while awaiting his brother. When Alphonso finally got back, the two brothers began arguing and Mackenzie brought up his money issues. Alphonso suspected that Mackenzie had asked Alphonso to join him to request money, something Mackenzie bluntly denied. Mackenzie then voiced his arguments against the government responsible for his situation and revealed that he supported the Watchdogs before angrily leaving.
Mackenzie later came back after calming down and worked on his bike while Alphonso left again for his job. Having completed the repairs on his bike, Mackenzie rode to Easterling Farms in order to apologize to his brother for his behavior. However, Mackenzie arrived in the middle of a S.H.I.E.L.D. raid and witnessed his brother working with an Inhuman. Disgusted, Mackenzie went back to the family home, where Alphonso joined him. The two brothers had another argument during which Mackenzie discovered that his brother was working for S.H.I.E.L.D. and protecting Inhumans.
Attacked by the Watchdogs
While Mackenzie and Alphonso Mackenzie were arguing, however, a group of five Watchdogs came to their home to assassinate Alphonso, who they thought to be an Inhuman. Although Mackenzie could not believe that the Watchdogs would kill them both, he agreed to follow his brother's command.
Mackenzie and Alphonso tried to make their way to the kitchen, where they could exit the house. On the way, Alphonso shot a Watchdog and reclaimed his weapon so that Mackenzie could defend himself. However, Mackenzie had no experience with guns whatsoever and asked Alphonso to talk him through it, which Alphonso briefly did. Then, they found another couple of Watchdogs, and while Alphonso knocked his opponent unconscious, Mackenzie managed to keep the other at bay.
They eventually reached the kitchen, but Alphonso spotted two Watchdogs guarding the door outside. Before they could figure out a plan, another criminal attacked and shot Alphonso in the shoulder before aiming at Mackenzie. Mackenzie screamed but Alphonso took the Watchdog down. As the two remaining Watchdogs were trying to break in the house, Alphonso crafted a first version of the Shotgun-Axe. When the thugs finally entered, Mackenzie knocked one out while the other was shot by Alphonso.
With the Watchdogs being defeated, Daisy Johnson joined the Mackenzie brothers. While Mackenzie saw his brother being taken by an ambulance, Johnson told him that his brother was a good person and that she fully trusted him. Mackenzie eventually figured out that his brother did not protect only the Inhumans, but also everyone else as a S.H.I.E.L.D. agent.
Although Mackenzie shares an interest for motorbikes with his brother Alphonso, the two brothers are different in several aspects. Mackenzie tends to be more playful and impulsive than his older brother. However, much like Alphonso, Mackenzie has a great sense of duty towards his family.
Mackenzie also somewhat had a dark side after he fell for the Watchdogs propaganda which made him believe that all his money issues where due to the government. He was positively amazed by the Watchdogs attacking an ATCU facility and thought that the Inhumans were no more than freaks. However, his views on the matter eventually softened when Mackenzie himself became a collateral target for the Watchdogs.
- Colt M4A1: While he was being attacked by the Watchdogs, Mackenzie picked up an assault rifle from one of the attackers and used it to shoot at another Watchdog, missing him, but still managing to briefly keep him at bay.
- Motorcycle: To be added
- Mackenzie Residence: To be added
- John Mackenzie - Father
- Lilla Mackenzie - Mother
- Marcus Mackenzie - Uncle
- Alphonso Mackenzie - Brother
- Nicole - Ex-Sister-in-Law
- Hope Mackenzie † - Niece
In chronological order:
- Agents of S.H.I.E.L.D.