Gears 5 will let you recast Marcus Fenix as Dave Bautista in the campaign.
As revealed in a video, below, Bautista is an optional skin for Fenix in the campaign, but comes with voice work from the actor.
Bautista is already a character available in the game's multiplayer. He arrives as an option for campaign on 10th November, when Gears 5 gets a big refresh to coincide with the launch of the Xbox Series X and S.