If youre talking about the other Spartan bloke, thats not Dave Chapelle, its Bokeem Woodbine, whos one of those scene stealing supporting actors that pops up in loads of stuff...Nice to see Dave Chappelle take on a more serious role.
Notably way back he's the nutty dude in Dead Presidents that carrys the Viet Cong soldiers head around in his bag for luck and Fargo season 2 as Mike Millligan the mob enforcer with the twin henchmen.