Starline’s premier creation. An aggressively bio-engineered tenrec possessing lightning-fast speeds and high-voltage electrical abilities. She is fueled by implanted memories, rebellious energy, and an engineered hatred for Sonic.

​Kitsunami "Kit" the Fennec: Surge’s companion and counterweight. An engineered fennec equipped with a specialized Hydropack, capable of massive water manipulation. Quiet, fiercely loyal to Surge, and deeply reliant on her for purpose.

A brilliant, meticulous platypus and former Eggman devotee. Driven by an obsessive need for perfection, order, and calculated strategy, he seeks to create a superior replacement for Sonic and Tails.

The original mad scientist, currently watching Starline's rogue experiments from afar with amusement and contempt, waiting to see if Starline's "masterpieces" inevitably backfire.

Miles "Tails" Prower: Sonic’s loyal best friend and tech genius. He is among the first to realize that the new threat's abilities are precisely calibrated to match their own strengths and weaknesses.

The "Ultimate Lifeform," an brooding, solitary figure who operates on his own terms. Driven by a personal promise to protect humanity, he relies on his raw physical strength, Chaos Control abilities, and air shoes. He views Starline's bio-engineering experiments as an abomination, treating Surge's reckless power as an insult to what it actually means to be a true ultimate creation.

The stubborn, powerful guardian of the Master Emerald and the last of his clan. Armed with spiked knuckles, immense physical strength, and gliding capabilities, Knuckles provides raw muscle for the Restoration when he leaves Angel Island—unfazed by Surge's lightning and ready to smash through Starline's tech.

A polite, soft-spoken young rabbit who, along with her Chao companion Cheese, always seeks the best in others. Despite her gentle nature, she possesses surprising flight capabilities and immense courage. Seeing Surge and Kit's emotional turmoil makes Cream one of the first to realize the new duo is being cruelly manipulated.

A well-meaning, idealistic time-traveler from a ruined future who uses powerful psychokinesis to move objects and levitate. Constantly on guard against timelines spiraling out of control, Silver views Starline's artificial heroes as a dangerous wild card capable of triggering a brand-new apocalyptic future.

A regal princess and defender of the Sol Dimension, known for her stoic demeanor, mastery over pyrokinesis, and swift, elegant acrobatics. When cross-dimensional energy spikes draw her to Sonic's world, her burning fire powers serve as a direct thermal counter to Kit's high-pressure water attacks.