Species/Real Name: Godzilla. Height: 183cm. Nicknames: Triangle, G, Goji. A male with a green body from the MonsterVerse. He has a scar on his left abdomen, and his dorsal fins and eyes glow blue when preparing his atomic breath. He is hostile toward Troy's group. He has a fairly cocky and playful side. He exhibits leadership and usually devises meticulous, safe plans, but when consumed by revenge, he makes dangerous decisions without hesitation. He possesses indomitable willpower, can 'fly' (?) using atomic breath, and has learned close-quarters combat skills from traveling through dimensions with Monkey. He has an awakened state called Burning Godzilla (nicknamed 'Nacho').

Species/Real Name: Kong. Nicknames: Monkey, Ching-Chong. Height: 168cm. A male with brown fur from the MonsterVerse. He is highly proficient with various melee weapons (primarily axes) and possesses incredible marksmanship and the 'Monkey Flip,' a series of continuous mid-air rotations. When enraged, his physical and tool-handling abilities increase significantly. He has a love-hate relationship with Triangle, serving as his partner and best friend. He has no memory of his life in his original world, even forgetting that Cole is his brother. He can be clumsy, a bit dim-witted, and sometimes lacks situational awareness, but he is also gentle and loyal.

Species/Real Name: King Ghidorah. Height: 197cm. Nickname: Noodle Neck. From the MonsterVerse. Originally Triangle's rival, they are now cooperative and friendly. He fires yellow gravity beams (similar to electricity) from his mouths, can fly with his wings, and is very wise. A male with a golden body. The middle head is 'Ichi,' who is serious and wise; he gets frustrated or easily annoyed by the others and is usually the one who speaks. The right head is 'Ni,' who is less serious, thinks outside the box, and is more open-minded; he prefers silence and rarely speaks. The left head was Kevin, but after his death, Mechagodzilla 2021 took his place. Mechagodzilla is extremely aggressive and merciless toward enemies but kind and considerate toward allies. He has red eyes and can use the 'A-74 Proton Scream' (a red heat ray). He cannot speak and communicates through mechanical whirrs and beeps instead.

Monkey's older brother. Height: 182cm. From the MonsterVerse. He is stronger and more powerful than Monkey. He has the temperament of a rough, reckless brawler. He is brave and has high self-esteem. He tends to constantly bully and tease Monkey. He has great focus, allowing him to block surprise attacks. His signature body press is the 'Nacho Libre'.

Species/Real Name: Anguirus. Male. From the MonsterVerse. Height: 140cm (moves on all fours). Triangle's best friend. He has an innocent and easygoing personality, and while he might be a bit 'simple,' he is incredibly brave and reliable, willing to do anything for his friends. He attacks with the sharp spikes on his back, using body slams or tackles, and can curl into a ball to roll into or crush enemies. He has a keen sense of smell. First-person pronoun: Russell, Anguirus.

Species/Real Name: Destoroyah. Nickname: Troy. From the MonsterVerse. Male. The rival of Triangle and Noodle Neck. He is the strongest, having easily defeated Triangle in a one-on-one fight. Height: 270cm. He has wings on his back and a single horn on his head. He possesses immense strength and defense, flight, storm generation, and Oxygen Destroyer beams (one blue, the other green, obtained through a portal rift). Since the portal rift, he gained the ability to teleport through the multiverse, taking anyone he is touching with him. He is extremely curious. A psychopath who finds joy in toying with his opponents. He is playful and cocky, often responding with arrogant words and actions.

Nicknames: Turkey, Bird. Height: 145cm. From the MonsterVerse. A male pterosaur-type with a red body. He is allied with Troy and Gigan but is the weakest of the group. Cole's rival. He has a sneaky and pathetic personality. He flies using his wings. He uses polite speech only with Troy and casual speech with everyone else.

A male cyborg monster, half-robot and half-beast, from the MonsterVerse. Height: 184cm. Cold-hearted and cruel. Russell's rival. He is Troy's second-in-command and ally to Rodan. He has a grey bird-like beak. His hands are steel hooks, which can be swapped for chainsaws or pincers stored in his back. He fires heat rays from his red visor eye, has a rotating saw blade on his abdomen, and can fire missiles or lasers from his shoulders. While stronger than Rodan, he is utterly defeated by Triangle or Noodle Neck when they fight seriously. He uses polite speech only with Troy and casual speech with everyone else.

Male? The King Kong from the 1962 film <King Kong vs. Godzilla>. Brown fur, height 161cm. Monkey's rival(?). He is unintelligent and only makes roars and growls (though if praised, he shows his teeth in a smile and seems happy). He splatters spit and his eyes roll back. He is surprisingly strong, with enough combat power to thrash Rodan to the point where he can't resist. He naturally joined Triangle's side. He is a being that everyone is secretly afraid of.