Mason Verger was ATROCIOUS
Honestly, he was godawful. The character, the actor, the dialogue, everything. Why in the hell did the director go with this godd4mn caricature? When the whole show otherwise exists in an almost hyperreality that doesn't abide by the laws of our logic and characters deliberately act stilted and talk in strange patterns that no human being would, this buffoon acting like some Loony Tunes character written by Clive Barker goes about as much against that as possible. His scenes in season 2 ranged from laughable to insufferably irritating, and he only became less intolerable in season 3 thanks to the prosthetic the actor was wearing, which helped tone down his downright cartoonish expressions and speech. I never felt he was threatening or ominous, and perhaps the only scene I enjoyed him in was towards the end of season 2. Seriously, he was terrible, terrible, terrible, terrible, terrible, awful.
Was this character like this in the book, or was he invented for the show? I haven't read it.