These are the other characters featured in the chronicles and elsewhere. Unlike the main team, they're not represented by anyone real.

Dr.Cossack
Dr.Cossack is not the vibrant young programming genius he used to be. His experience with the Pulse Transmission system left him a little traumatized and it manifests in himself as a mad scientist. Cossask made a fusion program as an advancement of his "Get Ability" concept so navis could enhance their capabilities, but the testing went badly when his test subjects turned out to be evil and used the program to steal entire navi bodies. To make up for it, he formed and sponsored the Net Guardians to counter the Acid Hackers and set things right again. He is not directly involved in the NG affairs, though he is intertested in where all his money is going. His meek assistant navi Dustman takes a lot of his erratic crazy abuse.

Kalinka
Kalinka Cossack is a young woman following in her father's footsteps as an innovative navi designer. Since Dr.Cossack's breakdown, she's taken to being his reluctant caretaker. She tries to keep his mad scientist tendencies under control, but her voice of reason often falls of deaf ears. She takes the responsibility of monitoring the NetGuardians as their supervisor, but she doesn't take a very active role, she merely checks up from time to time. Her navi Ringman was custom made by her and he is very affectionate to her as a result.

Mr.Famous
Mr.Famous is the boisterous wandering master that seeks out netbattlers to guide them on the right path. One such encounter backfired when he challenged Jeremy and Havoc with his navi Punk and the navis ended up switching bodies. Not to be discouraged, Famous has already modified Havoc's body into Punk's and the original Punk is back out for revenge. Famous is busy with his life's mission, but is always on the lookout for the Acid Hackers so he can set things right with them. Aside from Punk, he has many other navis to back him up. Aside from the Net Guardians, he's the AH's most dangerous enemy.

Fate
Little is known about Fate except that he or she's the Acid Hacker's benefactor. The AH have never seen Fate, but they constantly receive his or her messages, instructing them in one way or another how to collect the next Gamma piece. The AH are a bit suspicious of Fate's motives, but for all the free stuff they don't care too much.

The Hobo
The Net Guardians turned out to be very poor housekeepers, and this guy just showed up in their livingroom trash heap one day and continues to just hang around. Nobody knows much about him except he snores loudly.

Naomi.exe
Naomi is Carlos' long lost sister. She died but was reborn as a navi and was eventually reunited with Carlos after he joined the NG. Carlos now operates both Yamatoman and Naomi. Naomi is an effective fighter with powerful weapons like the X-Missile and useful abilities like the X-Scanner. Naomi is Yamatoman's partner and the two bravely watch out for each other on Carlos' solo missions.

Samantha Stake
Ms.Stake runs the donut shop the NG live above. She cynically puts up with her tennants and their slovenly lifestyle, though when they drive away business she gets violent.

Chameos Nova
Chameos is Nijubu's ward and friend, and they share the same other-worldly origins. Nijubu is only with the Acid Hackers thanks to strange events that brought Chameos to this planet. Nijubu originally came here to find Chameos, but far from home they both found so much more. Chameos is currently a member of the net-terrorist group Viral Infection. He operates Pharaohman.EXE, who has much in common with Nijubu's Desertman.