There is crossover, absolutely - look at the dates in the links you provided. He is a game animator, and began work at Dynamix in the early 90s before moving on to Raven later in the decade and beyond.
And seriously, you think there'd be two game animators with a name like Mike Werckle? The only person with that name on MobyGames or Giant Bomb is named Mike/Michael.
Can't believe MobyGames is the trusted arbiter of accuracy.