I'm glad I'm not the only one who thinks this. I like the IDEA of Mercy and Otis, it's just that I have such a firm vision of who they should be in my mind, that these two don't work for me at all. I don't even know who these actors are (though I have seen Mercy before- in Hollow Man! She was the neighbor that Kevin Bacon rapes while invisible).
It also doesn't help that they just feel like a stand in for Lex, which will be awkward later when Lex actually shows up.
Anyone else think that they have too many villains this season? You have Agent Liberty, Mercy and Otis, Lex, and Red Daughter Supergirl. Seems like overkill.