yes, there’s a fourth one, Zach Quarles.
Since Mike Willette worked for Double Helix, he was unavailable to do the voice over for the new Season 2 characters (i.e. shouting their names in the character select screen)
Then Zach Quarles took over the role of Willette for the rest of Season 2. We were told that, eventually, to avoid inconsistencies, Zach would replace Mike entirely. This hasn’t happened yet. We don’t know if this is still the plan.
So, as of now, when you select Mike as your announcer, Mike does the following voices:
combo announcing, ready, awesome victory, supreme victory, fight on, perfect, shadow counter, combo breaker, counter breaker, 1 2 3 shadow breaker, and the season 1 character select names.
Zach does the following ones: Season 2 character names.
Hope that clears it out.