Dominic West feared he wasn't the right man to play Prince Charles in the new series of 'The Crown' because he "didn't look anything like him".
'The Wire' star was signed to play the heir to the throne in the fifth series of the royal drama, but some fans of the show were left baffled by the casting.
Dominic, 52, has now admitted he shared their concerns as he was worried he "didn't look anything like" Prince Charles.
He told the Daily Mail newspaper: "It's quite disconcerting as I didn't look anything like him when I looked in the mirror.
"I kept telling the producers that they had cast the wrong person. But they explained that this was not a show of imitations. But that was difficult as this is a real person who is hugely famous and recognisable."
The show follows the royals over the years and casts different actors to play the main characters in the various stages of their lives.
Dominic replaces Josh O'Connor as Charles.
Josh played the royal in the third and fourth seasons, and picked up an Emmy Award and a Golden Globe for the role last year.
The fifth series of 'The Crown' is due to drop on Netflix in November and is set to cover the early-to-mid 1990s.
Dominic will star opposite 'The Night Manager' actress Elizabeth Debicki as Diana, Princess of Wales, with Trainspotting's Jonny Lee Miller taking on the role of Prime Minister John Major.
Imelda Staunton will play Queen Elizabeth II, with Jonathan Pryce as Prince Philip.
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