Yael Grobglas and Jaime Camil
Isn't it incredible that in 3 seasons they haven't had a single scene with each other? They are the only members of the main cast not to have interacted onscreen. Petra has had Rogelio's novela play on TV when she held Ivan hostage, but that is too meta to count.
And they're both hilarious. Please, writers, make it happen! Can't Anezka be a telenovela fan who runs into Rogelio somehow?