Sonic Unchained

Sonic Unchained is a action-adventure video game being a non canon spin-off of the main series, set in its own continuity.

Main/Playable

 * Sonic the Hedgehog (voiced by Yuri Lowenthal) - The World's fastest hedgehog.
 * Shadow the Hedgehog (voiced by [a Batman voice actor, Josh Keaton, Dante Basco, Zeno Robinson, Matthew Mercer or TBD]) - Sonic's part-time rival, part-time ally, and a black hedgehog known as the Ultimate Life Form.
 * Silver the Hedgehog (voiced by TBD) - A futuristic hedgehog with psychic powers.
 * Sapphire the Hedgehog (voiced by [Ashley Johnson, Mae Whitman, or TBD]) - Sonic's younger sister, and a female hedgehog. Although she shares her brother's speed-running abilities, she is not as fast as he is, but has her own unique ability to TBD

Supporting

 * Miles "Tails" Prower (voiced by [Tara Strong, Jessica DiCicco, or TBD])
 * Knuckles the Echidna (voiced by [Phil LaMarr, Ogie Banks, or Khary Payton])
 * Amy Rose (voiced by Hynden Walch)

Antagonists

 * Doctor Eggman (voiced by TBD) -
 * Orbot (voiced by TBD) and Cubot (voiced by Benjamin Diskin), TBD

Premise
Set in a highly futuristic Mobius, four hedgehogs battle the forces of a mysterious enemy while each is chasing his own personal goal: Sonic, who is battling Doctor Eggman and TBD; Shadow, who is working to solve mysteries from the past while being hunted TBD; Silver, who is attempting to fix a rift TBD; and Sapphire, who TBD.