Except Its Voice Acting - Tumblr Posts

I watched that Sonic 3 teaser(?) And why would Fowler do that to us? Not even a dialogue line?? Just a fucking silly little chuckle? I need to know who that is I'm dying out here! People are saying Hayden Christiansen but how can you hear that? It could be David Humphrey for all I know but I wanna solve this riddle!