Firstly the positives, the main actors feel generally right for their roles. Rheon does a good job as Maximus mixing a conniving attitude to his performance with a rather shaky (at times) American accent. It confuses why he needs to speak this way. His only sibling the King of Attilan Black Bolt can't speak due to the destructive force of his voice. So surely keeping his accent more manageable would have been a better choice.