Sonic the Hedgehog 4 is a 2026 action-adventure comedy film based on the video game franchise published by Sega, and the sequel to Sonic the Hedgehog 3 (2024). The film follows Sonic and his gang, who defend Earth against an invasion from the Black Arms species, led by Eclipse the Darkling, who wants to steal the Master Emerald in order to take over and destroy Earth.
Plot[]
Cast[]
- Ben Schwartz as Sonic the Hedgehog: An anthropomorphic blue hedgehog who can run at supersonic speeds and can't swim. He wishes to use his powers to be a hero and save lives, but is too immature and reckless. His opportunity to be a hero comes sooner than expected upon learning of his arch-enemy, Dr. Robotnik's return and his search for the ultimate power of the legendary Master Emerald, Sonic resolves to stop him by teaming up with his new little buddy, Tails.
- Ben Swartz as metal Sonic a evil blue hedgehog robot clone of sonic but White and black because he was made out of drone metal.
- Colleen O'Shaughnessey as Miles "Tails" Prower: An anthropomorphic yellow-orange fox who can fly with his two tails and quickly becomes Sonic's little buddy. He was shunned on his own planet for his two tails being seen as weird and was left lonely, but was inspired by Sonic after seeing his bravery in fighting Robotnik and joins up with him after learning Knuckles is hunting him. O'Shaughnessey is the only voice cast member from the Sonic the Hedgehog games to reprise her role for the film.
- Idris Elba as Knuckles the Echidna: An anthropomorphic red echidna warrior with superhuman strength who collaborates with Doctor Robotnik to find the Master Emerald and defeat Sonic but soon turns good after Robotnik betrays him and teams up with Sonic to stop him. He is the sole survivor of the echidna tribe after they were wiped out by the owl tribe. Elba prepared for the role by exploring the character's backstory and identity. Director Jeff Fowlerwanted the film's portrayal of Knuckles to be reminiscent of his early appearances, and said "his entire existence is about honor and about being a warrior", describing him as "a force of nature".
- Keanu Reeves as Shadow the Hedgehog
- Rhys Stefan Fu as Eclipse the Darkling
- Jim Carrey as Doctor Eggman
- Will Sasso as Jager the Big Cat Black
