The Crown season three will see The Durrells star play Charles in the next stage of his life as a young man entering society as the world’s most eligible bachelor.
Trying to navigate this world as one of the world’s most famous men is hard enough, but he has revealed to Radio Times the real reason why he has struggled with filming.
He said: “There were more physically demanding scenes or emotionally demanding scenes, but the first day on set was the hardest because I walked into an unbelievable powerhouse of a series with incredible actors like Olivia and Helena and Tobias.
“There’s an endless list of brilliant actors. Walking in and feeling the weight of it, it was so difficult.”
Any set featuring recently-crowned Oscar actress of the year Olivia Colman alongside Helena Bonham-Carter and Tobias Menzies would intimidate anyone.
However, the Netflix set is just a set at the end of the day like in any other show and he has since evolved into the role.
He added: “I opened my mouth and looked around and realised it’s just like The Durrells. A supportive team of creatives which makes such a difference and you get the best performances out of each other by supporting each other. That made the rest of the series a dream for that very reason.”
It certainly is a very different role to his previous one on The Durrells in which he plays temperamental poet Lawrence Durrell.
The ITV hit show set in Corfu could not be further from the rigidity and controlled world he will star in in The Crown.
This season will focus on the years 1964 to 1976 and feature Prince Charles following his coronation as the Prince of Wales in 1969.
O’Connor has previously revealed: “Seasons three and four will follow some of the most turbulent events in the Prince of Wales’s life and our national story and I’m excited to be bringing to life the man in the midst of it all.
“I’m very aware its a formidably talented family to be joining, but reliably informed I have the ears for the part and will fit right in.”
Olivia Colman is to play the role of the Queen for the next two seasons to replicate her in the 1960s and 70s, and charts the progression and growing up of her children as well as her relationship.
The previous Queen Claire Foy’s portrayal began more carefree as the then-princess enjoyed her life, until the death of her father and subsequent succession to the throne, but ended as a more stoic and disciplined Queen.
Olivia’s portrayal will face less turbulence but will represent a Queen we are more used to seeing and begin to lead up to some very dramatic moments in her reign.
The award-winning actress claims this is her hardest role so far and is nervous about the reception she will get to her portrayal: “I find the hardest is
Queen Elizabeth because everyone knows what she looks like, everyone knows what she sounds like, everyone has an opinion on whether the casting is right.”
Viewers will also meet a young Camilla Parker Bowles (played by Emerald Fennel).
Netflix has also announced on their Twitter account Princess Diana is going to be played by Emma Corrin in season four of the royal and political drama.
Fans will have to wait to see how the new cast fairs against the much-loved season one and two cast.
The Crown returns to Netflix in 2019.