My wife and I were talking about this. He has gone beyond acting and has done what few actors can do and has brought Homelander to life. Hands down the best actor on streaming right now. And easily the most terrifying and unsettling villain maybe ever in any streaming show. I have seen few characters that can unsettle me the way Homelander does. Every scene with him is full of tension and that simmering barely controlled rage, combined with the power to decimate everything if he blows for real. And Antony Starr shows such emotion on so many level and layers in just a look. Never seen an actor with such control over his facial expressions as to convey envy, anger, sorrow, disgust, or psychotic joy all at once. It carries through amazingly well. He is the most compelling part of the show.
I actually think The Boys is highly underrated. I think people focus on the exploding heads or bodies or penises and file it under "oh it's one of those shows" and they miss the depth of acting from some amazing actors, the excellent writing and layered story-telling, and the fresh and original take on what is rapidly becoming a tired and cliched genre. These are some of the best actors working right now, and working with fantastic material. It isn't perfect, but damn close, for the story they are telling with it. Probably the best comic adaptation yet, imo. And it holds up on re-watching, as my wife and I recently re-watched both of the first 2 seasons to prep for season 3. They are just as good the 2nd or 3rd time around, and you catch details you missed in the first viewing. Really great stuff.