I would say most of the cast. The reason I post so rarely in here is precisely because I do not like most of the cast they have assembled. I have yet to watch BvS, so I'll focus my grievances on MoS. I will make the disclaimer that although I disliked the performances, blame could be shared with the director:
Performances I did not like:
1. Amy Adams as Lois Lane: She is not nearly as spunky as she needed to be. In fact, she was mostly bland, which Lois Lane should never, ever come close of being.
2. Lawrence Fishburne as Perry White: there's not nearly enough energy on his performance. Frank Langella's similarly unimportant role in Superman Returns reminded me much more of comics' Perry.
Castings that leave me
mildly apprehensive:
1. Gal Gadot as Wonder Woman: she is more of a model than an actress. Nevertheless, I
have read good stuff about her in BvS, so I may be wrong.
2. Jeremy Irons as Alfred Pennyworth: I love Irons, I do. But there's this underlining of cunning and deviousness to every performance of his that I do not see fitting Alfred well. Alfred is all about compassion and unconditional love and support, and I would rather have someone loveable for that.
3. Jared Leto as The Joker: I think he looks too young, especially when compared to Affleck's seasoned Batman. Besides, I am still not over that awful look with the tattoos.
Castings that leave me
very apprehensive:
1. Jesse Eisenberg as Lex Luthor: I will be the first to acknowledge that there have been many versions of Luthor out there. That being said, the one I prefer is the seasoned, calculating, sophisticated politician/businessman, which Eisenberg does not fit at all.
2. Jason Momoa as Aquaman: Again, Arthur/Orin has seen numerous interpretations. I do think he should
always be regal and kingly, though, and Momoa has yet to convince me he can pull off anything more than brutishness.
3. Ezra Miller as The Flash: The Flash is all about charm, and Miller is this giant charisma black hole. He is downright sinister in every single performance I have seen of him, which does not fit Barry at all.
And I also agree with this:
Castings that I do enjoy greatly/am looking forward to:
Kevin Costner as Jonathan Kent (though written horribly in MoS)
Russell Crowe as Jor-El
Ben Affleck as Bruce Wayne