SONIC THE HEDGEHOG 2 Movie Behind The Scenes - Voices from the Film - Sonic The Hedgehog 2 official behind-the-scenes clips & trailer with the voices of James Marsden, Ben Schwartz as the voice of Sonic, Tika Sumpter, Natasha Rothwell, Adam Pally, and Jim Carrey returning, alongside new additions Shemar Moore, with Idris Elba as the voice of Knuckles, and Colleen O'Shaughnessey as the voice of Tails.