Cast of Sonic the Hedgehog 3

Ben Schwartz provides the voice for Sonic, the fast and adventurous blue hedgehog.

Jim Carrey portrays Dr. Robotnik, the main antagonist with a penchant for creating havoc.

Keanu Reeves lends his voice to Shadow, a powerful and mysterious hedgehog.

Idris Elba voices Knuckles, a strong and determined echidna who is a guardian of the Master Emerald.

Colleen O'Shaughnessey provides the voice for Tails, Sonic's loyal and intelligent fox friend.

Krysten Ritter plays Director Rockwell, a character involved in overseeing operations.

James Marsden portrays Tom Wachowski, a human ally to Sonic in his adventures.

Tika Sumpter plays Maddie Wachowski, Tom's supportive wife.

Lee Majdoub plays Agent Stone, Dr. Robotnik's loyal assistant.

Natasha Rothwell portrays Rachel, a character who interacts with the main cast.

Shemar Moore plays Randall, a character involved in the storyline.