However nothing can excuse shitty writing, if that was the plan then they should have wrote the character better and or added more scenes or dialogue to say hey look at this, he isn't what he seems to be. That being said, as far as the actor was concerned yes they did a shitty job on the child actor and not to mention his scenes. I mean the entire prequels was fucked over by shitty acting in the lead roles, Hayden Christiansen being a whiny little bitch to what's his name not really knowing how to act. Not to mention the dialogue for the actors was very....well don't get me started. When I look at the original trilogy and look at Vader I sit there and I can no longer take him seriously as being a threat to intergalactic community after seeing him being a whiny bitch the entire time. The only thing that has somewhat redeemed Vader in my eyes is the animated series clone wars both 2D and 3D, Rebels, various games, comics and books. Other then that if you are a person who only watches the movies you will not take Vader seriously if you watch from Episode 1 to 6.