Speaking to the New York Post, Campbell Bower explained that he could understand Arthur's fears and anxieties.
"Everything that was happening to me in real life was happening to Arthur," he said. "This is my first major role playing number one - I was confused, conflicted, nervous, scared, which are all the same things Arthur's experiencing.
"He's torn from his home and thrown into this position of power, so we were feeling the same things."
However, Campbell Bower added that he started to feel more comfortable, saying: "As we progressed, I became more focused, more solid, more aware of who I was - and as I did that, Arthur did too. By episode ten there is this focus and drive and masculinity that comes through in the character and that's terribly exciting for me to watch."
Campbell Bower also joked that people should tune in to the show because "it's the best thing you'll ever see on television".
"For one thing, you get to see my bottom," he said. "Also Eva Green's bottom! And James Purefoy's bottom!... There are a lot of bottoms."
Camelot's executive producer Chris Chibnall has previously claimed that Campbell Bower's character is a "modern" interpretation of Arthur.
Camelot airs on Fridays at 10pm on Starz in the US. The show will air in the UK later this year on Channel 4.
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