The adventures of everyone's favourite speedy blue hedgehog continue in an exciting new chapter that sees Robotnik return and unleash a powerful new weapon to exact his revenge. The third film in the trilogy sees the returning cast - Ben Schwartz as Sonic, Colleen O'Shaughnessey as Tails, Idris Elba as Knuckles, and Jim Carrey as Dr Robotnik - star, with new SEGA characters joining the chaos, led by Keanu Reeves as Shadow.Jim Carrey, Ben Schwartz, James Marsden, Tika Sumpter, Idris Elba, Colleen OShaughnessey, Natasha Rothwell, Shemar Moore, Adam Pally, Lee Majdoub, newcomers Alyla Browne and Krysten Ritter, with Keanu Reeves
