Saw this youtube review that was positive, but near the end there's a clip of the movie where it's mostly McCoy. He's played by Karl Urban, an actor who's usually stuck as mostly brutish bad-guy types in action movies. I like him as an actor, but in this clip it's as if he's doing a deadpan imitation of Deforest Kelly's McCoy, except it's even exagerrated a little. I don't know if he's like this during the whole movie, but it's kinda goofy I thought. Here's the clip, with the McCoy part around 3:50.