Christopher Aonuma (Kiriha Aonuma)

A seventh grader who leads and fights with Greymon and a large Digimon army. He eliminates enemies with cold and calculated methods, spreading the influence of his power so as to take over the Digital World.
- Aloof Ally: Kiriha becomes this in the beginning of the Death Generals arc. He travels with the group, but still chooses to go on his own at times and is not exactly buddy-buddy with Taiki and Nene. That is, until the last few episodes; compare him then to how he was at the beginning of the series.
- The Berserker
- Brainwashed and Crazy: Episodes 20-21. Taiki snaps him out of it.
- The Comically Serious: Has moments as this in the second half.
- Dark and Troubled Past: Episode 42 expands this, and my God is it troubled.
- Everyone Has Standards: He may be a jerk, but he doesn't like the idea of kicking people while they're down, even if they have info on a code crown.
- Expy:
- One fan called him the bastardized lovechild of Tohma and Nuts, oddly enough, since he may sound like Coco.
- Matt Ishida.
- Or Yoshino's ex-boyfriend, Hanamura Neon.
- He might remind some Pokémon fans of Paul, Trip & Gary Oak.
- His Part Two haircut resembles Hayato Gokudera.
- General Ripper: Deliberately fires on both the enemy and Taiki's forces hoping to take out both of them.
- Heroic BSoD: Has a brief one after NeoDevimon uses the Darkness Loader to absorb/Xros with MetalGreymon. In fact, he was shocked enough to have Taiki lead him away by taking his hand...
- Honor Before Reason
- Instant Awesome: Just Add Dragons!: Kiriha seems to believe in this. Blue Flare is basically entirely composed of different dragonic Digimon, and even their emblem contains a dragon.
- Jerkass: Moreso when his power hungry side kicks in.
- Jerk with a Heart of Gold: Despite his Social Darwinist status, he cares more for Greymon and MailBirdramon than he lets on.
- Kid-anova: In the manga.
- Meaningful Name: Aonuma means "blue swamp".
- More Than Mind Control: Gravimon inflicts this to him in episode 42, using Kiriha's feelings against him and making him turn against Xros Heart.
- Red Oni, Blue Oni: The blue to Taiki's red, until the 7 death generals, where the relation reverses (Kiriha has tried to attack through a head on assault, while Taiki started using strategy and timing).
- The Rival
- Slasher Smile: Combined with a Nightmare Face here: Brrrr
◊...
- The Social Darwinist: In the show he simply has no interest in those he considers weak and just wants to prove himself the strongest. In the manga, he actually wants to see the weak destroyed and is not above doing so if something else does not occupy his time.
- The Strategist
- Trigger Happy
- Tsundere: Not as a character overall, pre or post character development, but his "opening up moment" is about as wonderful an example of a classic tsundere moment as you can get, complete with blushing and stuttering. It's hilariously out of character (and proves how far he's come in trusting others).
- "Well Done, Son!" Guy: To his father, post-mortem.
Greymon

Kiriha's battle partner. A powerful combatant with the personality of an angry guard dog.
His digivolved and Xrossed forms are as follows:
- MetalGreymon, with MailBirdramon. He gains armour plating and weaponry vaguely reminiscent of the original MetalGreymon. Gains the Cyber Launcher weapon when Xrossed with Cyberdramon.DeckerGreymon, with MailBirdramon and Deckerdramon. MetalGreymon gains Deckerdramon's tank treads on his legs and a cannon on his right arm.RampageGreymon, with MailBirdramon, Ballistamon and Dorulumon. MetalGreymon gains many cannons and drills attached to his body. (Manga only)ZekeGreymon, his natural digivolved form, accessible only from the MetalGreymon form. A gigantic gold-plated variation on MetalGreymon, armed with tail-mounted and hand-mounted cannons.Shoutmon DX, with OmegaShoutmon, accessible only from the ZekeGreymon form. A bulky fighter which adds ZekeGreymon's armour, weapons and wings to OmegaShoutmon.Shoutmon X7, with OmegaShoutmon, Ballistamon, Dorulumon, the Starmons and Sparrowmon, accessible only from the ZekeGreymon form. A bulky gold-tinted warrior wielding a giant version of Shoutmon's microphone, adding parts of ZekeGreymon to the basic shape of Shoutmon X5.
- Beam Spam: GIGA DESTROYER!
- The Berserker: May seem like it when first shown. However, Greymon's first spoken words are "Are you all right, Kiriha?", after protecting him from Tactimon.
- Episode 25 pretty much features him talking a lot, much more than MailBirdramon.
- Beware My Stinger Tail: BLASTER TAIL!
- BFG: MetalGreymon, DeckerGreymon and ZekeGreymon have them.
- Blood Knight: Especially in the manga. He gets angry whenever Kiriha calls a retreat or decides not to fight.
- Blow You Away: MEGA TEMPEST!
- Breath Weapon
- Chrome Champion: As ZekeGreymon.
- Curb-Stomp Battle: Ones that spring to mind are ZekeGreymon obliterating Dorbickmon in one blow and on the reverse side Gravimon returning the favor to him in episode 42.
- Dinosaurs Are Dragons: And act like dinosaurs too. Greymon drinking from a lake in episode 19 seemed to have been lifted from Jurassic Park. Though to be fair, he lacks the "dramon" part which most of the dragon-type digimon have.
- Dumb Muscle: More so in the manga than in the anime.
- Expy: For the original Greymon. Though, he's also heavily redesigned, takes his color-scheme from the viral version of the species, and takes a few design cues from Savers' GeoGreymon as well.
- ZekeGreymon can be seen as an expy of VictoryGreymon. Though unlike most of the final forms in the Greymon family, it retains a beast-like build, averting another Bishōnen Line.
- Golden Super Mode: ZekeGreymon.
- Jerk with a Heart of Gold: He calls Shoutmon a runt, but saves him from being crushed by Valvemon later on without hesitation.
- Large and in Charge
- My Master, Right or Wrong: Less so for Manga!Greymon.
- Red Eyes, Take Warning
- Those Two Guys: With MailBirdramon in the manga.
- To Serve Man: Has a reputation for eating unsatisfactory generals in the manga.
- Walking Tank: The DeckerGreymon combination gives him tank treads and a bunch of armaments in the show, the manga has RampageGreymon.
MailBirdramon

Kiriha's other primary Digimon. An armored bird with aerial capabilities, he can DigiXros with Greymon to form MetalGreymon...and does pretty much nothing else.
- Animal Mecha
- Beware My Stinger Tail: Especially when xrosed with Golemon.
- Breath Weapon: PLASMA CANNON!
- Chest Blaster
- The Consigliere: He served this to Kiriha on more than one occasion.
- Cool Plane: He is one.
- Expy: Kiriha uses him as a flying mount in much the same way that the Digimon Kaiser used Airdramon. Based on his name, he may also be an expy of Birdramon.
- Feathered Fiend: Well, okay, technically he's an "armored cyborg fiend", but "bird" is in his name.
- Giant Flyer
- Heterosexual Life-Partners: With Greymon, his Xros partner. The only time MailBirdramon's calm exterior breaks is when Greymon falls when the ground breaks beneath them.
- My Master, Right or Wrong
- No Hero to His Valet: In the manga he is openly dismissive of Greymon's posturing.
- Our Dragons Are Different
- Satellite Character: He has virtually no characterization beyond being Greymon's Digi Xros partner, and exists for virtually no other purpose. It's best exemplfied with ZekeGreymon - it evolves from the merger of Greymon and MailBirdramon, yet is essentially treated to just be Greymon.note
- Out of Focus: In the earlier episodes, he had a lot more dialogue and screentime on his own. The arrival of Greymon shot down any higher aspirations pretty quickly.
- The Stoic
- Super Speed
- They Have the Scent!: The manga states he has a good sense of smell that allows him to track Kiriha's targets.
- Those Two Guys: With Greymon in the manga.
- Wave-Motion Gun: In his chest.
Cyberdramon

Another one of Kiriha's Digimon.
- Axe-Crazy: He doesn't get much focus, but one of the few bits of characterization we get about him seems to indicate this.
- Beware My Stinger Tail: DEATH DIVIDER!
- Blade on a Stick
- Combat Tentacles: He can use his ribs as this.
- Everything's Better with Spinning
- Expy: For the original Cyberdramon.
- My Master, Right or Wrong
- Our Dragons Are Different
- The Quiet One
- The Smart Guy: Supposedly for Blue Flare in the manga.
- Wave-Motion Gun: His MetalGreymon xros turns him into one.
Deckerdramon

The Guardian Deity of Love who watches over Forest Zone's Code Crown. Later joins with Kiriha's army.
- Beware My Stinger Tail: HEAVY TAIL HOOK!
- Cool Boat: He has an aquatic mode that he uses for traveling in the ocean.
- Gentle Giant: Who knew when feasting eye on images of him he would be such a supporter of The Power of Love. Then again, Team Blue Flare probably needs someone like him.
- Heroic Sacrifice: Despite being injured from Kiriha's Digimon, he still protected everyone. His final words, given to the now-changed Kiriha, were, "I was happy to have served you as my General."
- Dead Sidekick
- Back from the Dead: In the finale.
- Macross Missile Massacre: DECKERDRAUNCHER!
- More Dakka
- Never Smile at a Crocodile: Subverted
- Our Dragons Are Different
- Walking Tank
Dracomon

A young dragon Digimon who was fleeing from the clutches of Dorbickmon. He looks up to Blue Flare, much to Kiriha's chagrin.
His digivolved and Xrossed forms are as follows:
- An unnamed Digimon, with Cyberdramon. Dracomon grows larger and adds parts of Cyberdramon's armour to his body. The dub names this form CyberDracomon.
- Badass Adorable: To quote Shoutmon...Shoutmon: You're blind, Kiriha! He is weak, but he has lived up to this point. His heart is much stronger than anyone of us!
- He graduates to full badass status in the finale when Xrossed with Cyberdramon.
- Determinator
- Early-Bird Cameo: Came out as part of the DigiMelody segment first, some episodes prior to 31.
- The Heart: Of the Blue Flare Army.
- Ridiculously Cute Critter: As far as Blue Flare members are (barring Bommon). His voice actor also adds more to the cuteness.
- The Smart Guy: One of his skill is finding the weak point in structures, which comes in handy on a few occasions.
- Tunnel King: He dug out escape tunnels all over Dragon Land and knows them like the back of his hand.
- Weak, but Skilled
Gaossmon

A group of reptile Digimon who serve Kiriha. They make up the bulk of the Blue Flare army, but are rarely seen, popping up only when Kiriha feels he needs force of numbers.
Their digivolved and Xrossed forms are as follows:
- PawnGaossmon, with the Pawnchessmons. A variation of Gaossmon wearing PawnChessmon's helmet on its head and PawnChessmon shield on its back. PawnChessmon's spear is hidden under the shield and can be launched as a missile.
- Backpack Cannon: When DigiXrossed with PawnChessmon, PawnChessmon's spear and shield become a backpack missile launcher.
- Cephalothorax: They're dinosaur heads with legs and tails.
- Expy: As Greymon is one to the original, the Gaossmon are essentially Xros Wars' answer to Agumon, who has a lot of these.
- Mooks: That's the best (or only) description of their role in Blue Flare.
- Stock Dinosaurs: Averted. They're based off of Gasosaurus
, an obscure theropod.
- Zerg Rush: Used for this a couple of times.
Bombmon
Digimon with the appearance of cartoon bombs with vaguely cetacean features. They generally act as living weapons.
- Having a Blast: They are not harmed at all by their own explosions.
- Living Weapon: Seems to be their purpose.
- Throw Down the Bomblet: Used as this by Lilymon during the final battle.