Dominic West is set to play Prince Charles in the final seasons of ‘The Crown’

A source told The Sun newspaper: “This will be a prestigious casting for Dominic. Show bosses looked at several stars for the sought-after role, but he was by far their preferred actor. Now both parties are hammering out a deal.”

Dominic - who recently took a trip to Italy with Lily James - will play Charles during the royal’s marriage to the late Princess Diana, who will be played by ‘The Night Manager’ star Elizabeth Debicki.

Meanwhile, Diana - who passed away following a car crash in 1997 - is being introduced to the show for the first time in the upcoming fourth season, which is set to be released on Netflix on November 15.

Diana will be played by 24-year-old actress Emma Corrin, whilst Josh O’Connor will continue his role as a young Prince Charles, after first being cast for 2019’s season three.

It was recently revealed that the fourth season of the show will begin in the late 1970s, where Queen Elizabeth II - played by Olivia Colman for seasons three and four - and her family find themselves preoccupied with safeguarding the line of succession by securing an appropriate bride for Prince Charles, who is still unmarried at 30.

Season four will also see tensions arise between the Queen and the first female Prime Minister Margaret Thatcher (Gillian Anderson), after Thatcher leads the country into the Falklands War, generating conflict within the Commonwealth.

Written by Peter Morgan, ‘The Crown’ season four also stars Helena Bonham Carter as Princess Margaret, Tobias Menzies as The Duke of Edinburgh, Erin Doherty as Princess Anne, Emerald Fennell as Camilla Parker Bowles and Marion Bailey as the Queen Mother.

And for the final two seasons, Imelda Staunton will take on the role of the Queen, whilst Lesley Manville will take the role of Princess Margaret, and Jonathan Pryce will be the show’s final Prince Philip.