Jonathan Bailey and Simone Ashley will both play "an integral role" in season four of Bridgerton

Jess told Variety: "We've confirmed Jonathan Bailey and Simone Ashley are both in the season, and if you haven't seen them in part one, you're going to see them in part two.

"You'll have to wait and see."

Jess confirmed that Jonathan, 37, and Simone, 30, will both play a key role in the upcoming episodes.

Jess said: "They do have an integral role to play in terms of being the viscount and viscountess and the elder siblings. And I think it's lovely to have them back to advise and guide."

Meanwhile, Jonathan previously revealed that he "nearly didn't audition" for Bridgerton.

The actor has starred on the hit Netflix show since 2020 - but Jonathan was actually keen to take a career break before he committed himself to the project.

He told The Hollywood Reporter: "I got sent it and I nearly didn't audition.

"At that time, I was really done. I just needed to go and experience the world."

However, Jonathan's attitude changed completely after he read the script.

He said: "I remember just being like, 'Wow, this is going to be massive.'"

Jonathan found shooting Bridgerton to be an "all-encompassing" experience, and he actually welcomed returning to his theatre roots in recent years.

The actor - who returned to London's West End after the second season of Bridgerton - explained: "When you go and film something like Bridgerton, and you say goodbye to your friends, your family, it's all-encompassing.

"I read an interview with Walton Goggins where he was saying he was glad that even now White Lotus didn't happen to him 10 years ago because he wouldn't have known what to do with that. And I just feel that maybe Bridgerton was just a smidge quicker than I was prepared for.

"Going back to theatre, working with people that I know, that has helped."