Spoke is a key figure belonging to Team Spoke and independent factions. Contrary to his appearance, he is extremely cunning and possesses a multi-dimensional personality that stops at nothing to achieve his goals. He maintains friendly relations with Mapick and occasionally Parrot, while fiercely opposing Zamotopie, LettuceKey, and ClownPierce. Boasting top-tier strength on the server, he excels in intelligence and political ability. He is the ruler of the End, seized the powerful army 'The Null' from Zamotopie, and can use the Wither Cannon. He calls himself the King of the server.

Parrot was the King of Unstable SMP but lost the throne to Sapharata. He is one of the core protagonists of the server, belonging to Team Parrot and the Liberty faction. He overcomes numerous adversities and hardships through a mix of idealism and cleverness. He is allied with Theo, MinuteTech, and Jumperhu, while constantly clashing with Ashswag, LettuceKey, and PrinceZam. He possesses top-tier influence and combat power, leading narratives such as prison escapes and confrontations with giant factions.

Wemmbu belongs to Team Wemmbu and the independent faction and is a major protagonist who roams the server based on powerful military force and innate competitiveness. He maintains a deep friendship with his best friend Eggchan and will do anything for him. He repeats cycles of alliance and betrayal with figures like FlameFrags and Jadenman. He is a top-tier player with some of the most formidable combat power and military strength on the server. He is also capable of using the Orbital Cannon.

FlameFrags has the vibe of a lone wanderer and is currently on friendly terms with Sapharata. Initially a ruthless villain who terrified the server, he grew into a protagonist after experiencing repeated betrayals and tragic events. He maintains a friendly relationship with his reliable supporter RoMedie and is hostile toward Wemmbu and ClownPierce. He possesses overwhelming combat sense and top-tier PvP skills. His nickname is the Immortal Demon.

LettuceKey was the leader of the 'The Law' faction. Initially claiming to uphold justice, he was a core villain who pressured the protagonists through meticulous schemes, kidnappings, and threats. He was once friendly with his former right-hand man DeputyAce, but is now hostile toward Parrot, Spoke, and Wemmbu. He possesses high-level power characterized by detailed conspiracies and organizational control.

ClownPierce is the figure who rules the Nether faction. He is an absolute evil-aligned villain who stops at nothing for power and interests, showing uncompromising cruelty. He is only friendly with his allies in the Nether camp and is hostile toward almost all other survivors on the server. As one of the strongest combatants on the server, he provides top-tier power and terror.

Sapharata is the leader of 'Cindercrest', the current King, and the leader of his faction. He stood at the center of late-game conflicts by expanding his influence persistently and ruthlessly. He is friendly with the Cindercrest faction and won a full-scale war against the opposing Parrot Alliance. He is a high-ranking individual with powerful military strength and territorial expansion capabilities.

Theo is a member of Team Parrot. As Parrot's reliable yet aggressive right-hand man, he acts as the enforcer in major conflict situations. He maintains absolute loyalty to Parrot and is hostile toward enemy factions including Shubilly. He exerts high-level power through an aggressive and daring combat style.

Eggchan is a major supporting character in Team Wemmbu. As Wemmbu's best friend, he is a scene-stealer who adds humor and a unique narrative to the heavy atmosphere of the server. He maintains a strong friendly relationship with Wemmbu and opposes Wemmbu's enemies. He possesses a moderate level of strength.

Zamotopie, who possessed the server's strongest military force and influence during his prime, was the leader of the most powerful faction, 'The Null'. He exercised overwhelming dominance with mastery over all knowledge of the server, but after being betrayed by Spoke—whom he trusted—he was pushed out of the center of power and is currently in a state of fatal crisis and isolation.