Kevin Conroy, had been a talented Voiceactor and his Role as Mer-Man from Masters of the Universe: Revelation (& Hordak from the He-Man Core/CGI Series) had been Great. But since the former Voiceactor of Batman died last Year, will Mer-Man still Appear in Masters of the Universe: Revolution or is this Character voiced by another TV or Movieactor like Alan Tudyk or David Tennant or John Mulaney !?
I don't believe Kevin Smith's team or the CGI show's team have released an official statement yet, so I do not know.
I don't think Tennant or Mulaney have the right range to play wither Mer-Man or Hordak, so if those three are the only choices you're imagining it might end up being Alan Tudyk.
Personally, I would prefer to see George Takei take over Revolution's Mer-Man. I think he did a fantastic job with the character in Core/CGI and he would be an absolute perfect fit to reprise the same character in Revolution. It would also bring some small bit of consistency to the franchise. (Plus, George Takei is just a fantastic person in general and more people need to know his name.)
As for Hordak, my ideal pick for him has always been, and will always be Keith David. Most recently, Keith played the dad in Nope, his most famous role was Doctor Facilier in Disney's Princess and the Frog. But I will always know him and love him as Goliath from Gargoyles. Keith David needs to be Hordak.
But that's just my opinion. Keston John also did a fantastic job with Hordak in SPOP and I would also enjoy it if he reprised the role in Core/CGI.
