ALISON BOSHOFF: Pregnant Sienna Miller’s boyfriend Oli Green has an upcoming role in The Crown as Kate Middleton’s boyfriend

ALISON BOSHOFF: Pregnant Sienna Miller’s boyfriend Oli Green has an upcoming role on The Crown as Kate Middleton’s boyfriend

Sienna Miller’s boyfriend Oli Green has a role in the upcoming season of the hit TV show The Crown.

The actress, 41, and the actor, 26, revealed this week that they are expecting their first child together.

Oli will appear in the sixth and final series of The Crown as Kate Middleton’s boyfriend before she began a relationship with Prince William.

He plays fourth-year law student Rupert Finch, who dated the now Princess of Wales for a year at St Andrew’s University.

In March, he was seen filming for the Netflix show in St. Andrews, with Ed McVey and Meg Bellamy playing Will and Kate.

New role: Sienna Miller’s friend Oli Green has a role in the upcoming season of the hit TV show The Crown

Love triangle: Oli will appear in the series as Kate Middleton's boyfriend Rupert Finch, who she dated for a year at St. Andrew's University before starting a relationship with Prince William

Love triangle: Oli will appear in the series as Kate Middleton’s boyfriend Rupert Finch, who she dated for a year at St. Andrew’s University before starting a relationship with Prince William

Real deal: The real Rupert next married the daughter of the Marquess of Reading, Natasha Rufus Isaacs of Beulah London dresses fame and attended Kate and William's wedding in 2011 (pictured with Natasha in 2013)

Real deal: The real Rupert next married the daughter of the Marquess of Reading, Natasha Rufus Isaacs of Beulah London dresses fame and attended Kate and William’s wedding in 2011 (pictured with Natasha in 2013)

The trio were seen smiling and joking while filming the scene, with Oli holding hands with Meg’s Kate.

The real Rupert next married the daughter of the Marquess of Reading, Natasha Rufus Isaacs of Beulah London to fame and attended Kate and William’s wedding in 2011.

Oli studied at the Strasberg Theater & Film Institute in New York and has been acting since 2019.

According to IMDb, his first role of any kind was in the music video for John Eatherly’s Burnout alongside Kaia Gerber when he was 22 years old.

He also appeared alongside Florence Pugh and Morgan Freeman in the 2023 film A Good Person.

But Oli’s modeling career took off first and he has worked with many famous names on promotions.

He was the face of Gap’s 2017 I Am campaign and also appeared in a series of Burberry features alongside Cara Delavigne.

Oli and Sienna began to romantically bond in early 2022 they were spotted together in New York City.

In character: In March, he was seen filming for the Netflix show in St Andrews, starring Ed McVey and Meg Bellamy as Will and Kate

In character: In March, he was seen filming for the Netflix show in St Andrews, starring Ed McVey and Meg Bellamy as Will and Kate

Romance: Oli and Sienna began a romantic relationship in early 2022 when they were spotted together in New York City (pictured in March 2022)

Romance: Oli and Sienna began a romantic relationship in early 2022 when they were spotted together in New York City (pictured in March 2022)

Loved up: They made their red carpet debut as a couple at the Vanity Fair Oscars party and have since made several public appearances together, including at Wimbledon in July 2023

Loved up: They made their red carpet debut as a couple at the Vanity Fair Oscars party and have since made several public appearances together, including at Wimbledon in July 2023

Shortly after, in March, their romance was confirmed as they left the BAFTAs together on their way to British Vogue’s Fashion & Film after-party.

They made their red carpet debut as a couple at the Vanity Fair Oscars party and have since made several public appearances together, including at Wimbledon in July 2023.

Sienna confirmed she’s pregnant over the weekend while on a beach holiday in Ibiza, People reports.

The Layer Cake star is already mum to daughter Marlowe, 10, with her ex Tom Sturridge.

Sienna discussed her relationship with Oli, who is fifteen years her junior British Vogue: ‘There is an ingrained misogyny in men my age and older that I don’t see in (the) generation below’.