This is a deleted scene from Terminator 3 showing why exactly the terminators look like Arnold. It’s a really funny scene that should have been in the final cut of the film. If you’re a Terminator fan you’re going to love this.
People don’t take me seriously when I say this but Arnold is legitimately a very talented actor and I would argue that his objective work is some of the very best of any other actor. He has a somewhat narrow emotional range (it’s wider than most people give him credit for, but he’s obviously no James Dean) and his voice work is obviously very limited, but in terms of objective, being authentic, and really diving into things, he’s seriously one of the best.