: Key returning voices include Ben Schwartz (Sonic), Colleen O'Shaughnessey (Tails), and Idris Elba (Knuckles).
The "story" of the fourth film is widely expected to expand the cast with two iconic female leads: Soniyamp4
: Typically arrives from Sonic's home world using her mystical Tarot cards. She serves as the heart of the team, providing a new dynamic of optimism and a "never-give-up" attitude that contrasts with Sonic's cocky demeanor. : Key returning voices include Ben Schwartz (Sonic),
: Using this data, they construct a cold, calculated mechanical doppelgänger designed to match Sonic's speed and surpass his strength. Colleen O'Shaughnessey (Tails)