Marvin Jackson

Marvin Jackson (マーヴィン・ジャクソン) is the second in command of the Sons of Chaos. His online handle is Song Smith (ソングスミス). His partner is.

Description
Marvin is one of the develops of GriMM, making him one of the leading software engineers in the world.

Etymologies
Name used in Digimon Seekers.
 * Marvin Jackson (マーヴィン・ジャクソン)

Fiction
Having heard about Eiji Nagasumi's exploits in defeating the DigiPolice, as well as the fact he had applied to join the Sons of Chaos, Marvin sets up a meeting to meet him.

Upon time for the meeting, Marvin, having logged into GriMM at some point to access the Sons of Chaos' channel, notices Eiji and were there, and scans the dog. Loogamon notices this, and so, Marvin, flanked by his partner, approaches them.

They exchange introductions, followed by Marvin asking if Eiji had ever applied to the SoC under a different name or if he had belonged to other cracker teams, as it was unusual for such new cracker to be able to defeat the DigiPolice like he had. He figured either the information was a lie, or Eiji was up to something. Eiji, now fearful that the SoC had already caught on to him, states he hadn't and had simply been a freelancer until recently, with Marvin figuring that a Mindlinker probably wouldn't be stupid enough to pull something. The four of them go into Marvin's private room, where he tells Eiji about their upcoming plan and that they don't have enough members to pull it off. Eiji questions that, since the SoC have a lot of members, though Marvin says they need A class hackers that can Mindlink and that there are very few of those. With Eiji fitting that criteria, he instantly offers his services without listening to what it was with Marvin surpirsed since it would obviously be dangerous. Marvin praises him for defeating the DigiPolice, whilst Eiji asks if Tartarus will be part of the mission claiming he idolizes him with him being the entire reason he joined. Marvin becomes distracted as Airdramon begins to play with Loogamon — Marvin deciding to join in too — though answers Eiji after doing so, telling him that though Tartarus set up their missions, he rarely gets involved in himself. He shares a file with Eiji, telling him that the mission was named "Operation Infinity", and that he should return Mindlinked the next day. Just as Eiji bids farewell, Marvin asks him if he had heard anything about a BlackAgumon though Eiji states he only knew that someone was looking for one. Marvin reveals it was actually the SoC that were looking for it, with Eiji surprised, since the reward was 100 million. Marvin informs him that 100 million was nothing for SoC, especially as Tartarus was obsessed with getting his hands on a BlackAgumon.

The members of Operation Infinity meet up in Marvin's SoC room, with there being eight users there total. The monitor displays the mission, which is to hack Nation X's server. Eiji is surprised, and questions the other users about doing such a thing, which leads the others to laugh at him. Marvin tells him that all members need to be on the same page, then informs him that hackers from Nation X had performed lots of cyberattacks and had even recently stolen billions worth of cryptocurrency – with Eiji surprised to learn that they were the ones responsible for it. Since the SoC use cryptocurrency they couldn't turn a blind eye to them doing such a thing, especially if it caused a major shift in the World's financial powers. Eiji continues to be surprised, since hackers do so to become rich meaning this was hypocritical, with the other hackers stating they just wanted to destabilise Nation X's leader as well as get revenge on them, as they had done crimes using a Machinedramon and framed the SoC. Tartarus arrives, introduces himself as the leader of the SoC, and then tells them to render their server useless and capture their Machinedramon. After cheering, the hackers – including Marvin – summon their partner Digimon and Mind Link with them.

The Sons of Chaos have their eight members split into teams of two, with the Mindlinked Airdramon/Marvin travelling alongside Loogamon/Eiji. Eiji asks Marvin what Tartarus will do with X Nation's Machinedramon once they have it, with Marvin becoming annoyed at Eiji for being more interested in Tartarus than the mission. He tells Eiji that even as Tartarus' right hand man he barely knows him and has no clue why he wants Machinedramon. Eiji insists that isn't the case and he was super focused on the mission, even to the level he hadn't slept – which causes Marvin to realise he had been overestimating Eiji as not sleeping could cause him to make a mistake and ruin the mission. Eiji continues to ask questions about Tartarus as they travel, with Marvin answering with theories rather than actual answers. A vortex appears, though it quickly disappears, with Marvin warning Eiji about them. Eiji and Marvin discuss rumours of people supposedly going into them and living with Marvin not believing them as he hadn't known a single person to go inside one and come back. They eventually reach X Nation's servers, and begin their attack.

Airdramon and Loogamon fight and defeat Digimon belonging to X Nation hackers, with Marvin telling Eiji not to digivolve to Champion as staying at Rookie will allow him to Mindlink longer and get both of them out once Marvin runs out of time. The other teams were simply decoys for Eiji and Marvin, making it even more important for them both to avoid running down their times any longer than needed. They are stopped in their tracks by a wall, with Loogamon stating Machinedramon was behind it. Airdramon complains at how much power it will take to destroy it, though Loogamon tells Eiji to set his tool to Decode which – to the shock of Marvin – allows Loogamon to decrypt the wall in an instant.

As they pass what used to be a wall, they are greeted by the roar of Machinedramon. They see it was held in place by a bunch of tools, meaning it wasn't a threat, with Marvin sending his Airdramon to attack it. He has Airdramon digivolve to and attack Machinedramon, trying to free it. Eiji's monitor suddenly alerts him to the fact another Mega had just shown up, which proceeds to easily defeat Megadramon.

Eiji and Loogamon looked on in shock – unaware of who had even defeated it. They panic, looking over Megadramon, worried for Marvin since if it takes enough damage it could kill not only Megadramon, but Marvin as well. The other SoC members arrive, and ask Eiji why they hadn't captured Machinedramon yet. They see Marvin's Megadramon knocked out and wonder who had done it, since they had acted as a decoy to keep most of X Nations defences busy. They shoot down Eiji's suggestion that maybe the DigiPolice had caught onto their plan, since the Japanese police hacking another countries server would cause a massive international incident. proceeds to defeat every member of the SoC, including Loogamon, with the SoC members realizing who it was as only Leon Alexander was known to own a Kazuchimon. Unable to do anything, they watch as Kazuchimon kills the still trapped Machinedramon. Leon tells it to return to being a and hopes that upon its revival it would be taken in by a nice person, rather than an evil hacker. He tells the SoC that he had decided to help their operation to stop X Nation doing crimes but couldn't allow them the pleasure of doing it themselves as he hated all hackers. Loogamon tells Eiji they need to flee as the mission was a failure, with Eiji refusing to leave Megadramon/Marvin behind. Loogamoon protests as they weren't friends with Marvin, but Eiji refuses to budge as he thought Marvin was as nice guy and he actually had become friends with him. He tells the other members to get Megadramon to safety, and as they do so he will distract Kazuchimon. The other members doubt he could defeat a Mega but Eiji simply tells them to do as he says.

As they try to do so, Leon demands to know where Tartarus was and tells the SoC he will ruin their reputation as he had heard none of their missions had ever resulted in one of their members dying. Feeling cocky, Leon has Kazuchimon de-digivlve to figuring that as he had already taken out Megdramon and Machinedramon he no longer needed to waste some of his Mindlink time at Mega as he would still be able to kill the other seven with his partner at the Ultimate level. Loogamon points out that as Leon was mindlinking he was on a time limit as well, and figures they could save everyone by stalling long enough. Loogamon digivolves to and attacks Boutmon, with the force of its attack enough to stop it before it could reach Megadramon. Leon is surprised at just how strong Loogarmon was, with Eiji mocking Leon, telling him that he had actually de-digivolved as he was almost out of time. Megadramon wakes up, with Marvin telling everyone to flee as well as telling Leon he had committed a grave mistake in making an enemy of the SoC. Boutmon de-digivolves to and as Eiji looks at it, he recognizes it and wonders why. He then remembers, his childhood best friend Leon had shown him his partner Digimon a long time ago with it being the same exact Digimon. Realizing that meant he was fighting Leon, he Hololizes – which also causes Leon to hololize as well. Not only was Eiji surprised to see Leon, Leon was surprised to see Eiji. Their reunion is cut short however as more X Nation hackers arrive, causing everyone to flee before they could be taken out by the reinforcements.

As Marvin is in his room in the SoC's GrimM channel, he is visited by and the Hololized Tartarus, who was using a generic avatar. Dorumon asks how Megadramon was, with Marvin stating that it was okay but would be out of action for a while due to the injuries it had sustained. He tells Dorumon that Eiji, the hacker that Tartarus had personally scouted, had saved him and wonders if he should retire having lost that badly. Social media had become ablaze with rumours about how Judge had single handedly defeated the SoC, with the SoC themselves having leaked this information. Dorumon and Tartarus tell Marvin they would not let Judge get away with it and would get revenge against him as he poses a threat against not just the SoC but the entire. Marvin asks if the duo are going to go ahead with their plan for an all out war, with them confirming that even with the loss of Machinedramon the final piece of the puzzle had still fallen into place. They discuss Eiji and Loogamon, saying that they had only seem him digivolve to Champion and as such didn't know whether they could trust them to stick with them till the bitter end without seeing their full power. He asks Marvin if he is still dedicated seeing Tartarus's plan to the end, to which Marvin confirms he is.

Marvin later sends Eiji a thank you gift.