The character,Beth, is confident, strong, and fiery.

And she keeps viewers on their toes with what she’ll say next.

Although she’s been a successful actress for years, Reilly is also quite private.

Kelly Reilly

But, we’re ready to dispel the mystery with these little-known truths about Kelly Reilly.

She’s not even American.

Though Kelly Reilly’s spot-on accent throughout “Yellowstone” has many people fooled, she’s actually English.

Kelly Reilly in 2014

She even started her acting career in British television (viaExpress).

If anything, learning she’s British makes Reilly’s acting in “Yellowstone” all the more impressive.

“For me, this is a slice of America …

Kelly Reilly posing with other actors

There’s something about that lost part of America that I’m really interested in.

I didn’t really know too much about it,” she explained.

But the role that Reilly was known best for on stage was 2003’s “After Miss Julie.”

Kelly Reilly at Flight premiere

The English actress played the title role and got rave reviews on her spectacular performance.

Reilly gained even more recognition when, during one performance, she cut her foot on broken glass onstage.

As aforementioned, she’s known for her work on the London stage and on British television.

Kelly Reilly at “Sherlock Holmes” premiere

One of her first roles was in the 1995 TV movie"Prime Suspect: Inner Circles.

On “Yellowstone,” Reilly acts alongside Kevin Costner (who hadhis own businessin the 1990s).

However, this isn’t the first time she’s appeared on screen with big-name actors.

Kelly Reilly, Robert Downey Jr., Jude Law, Noomi Rapace

Her early role in “Prime Suspect” had her working with Helen Mirren.

In each role, Reilly has proven her ability to shine even alongside Hollywood legends.

However, very little is known about the actress' real-life family.

Kelly Reilly at Yellowstone premiere

However, she has shared she’s the daughter of a police officer.

The Brixton riots of 1981 also took place during his 25 years as an officer.

But the actress also added that she thought non-violent protests could be “absolutely essential.”

Kelly Reilly at the “Flight” premiere

When asked about the scandal, the actress toldThe Guardian, “All that was ridiculous nonsense.

And I won because it was completely made up.”

During an interview withLooper, Kelly Reilly shared how much she loves Beth and the opportunity to play her.

Kelly Reilly at a Hollywood gala

“I’m inundated with very feisty, strong, violent-pop in women.

I don’t want to play that again, those badly written Beths,” she explained.

In the film, Reilly plays Isabelle Laurent, who is far more mild-mannered than Beth.

Kelly Reilly with the “Yellowstone” cast

However, it’s possible they started dating earlier than 2012.

In the scene, Beth charges at a group of wolves.

The wolves were, of course, trained, and there were animal handlers on set.

Kelly Reilly posing

“I’ve been riding all my life,” Reilly said.

She first gained recognition for her on-screen work as early as 2006.

She also won a London Critics Circle Film Award for Best Newcomer again for “Mrs. Henderson Presents.”

Kelly Reilly poses with her award

Her nomination for “Yellowstone” excited many of the show’s fans who felt it was well-deserved.

Some took to social media to congratulate the star.

Express quoted one excited viewer who said, “Her acting [is] what makes this show!

Kelly Reilly in Sundance Film Festival portrait

Go for the win!”

Another of her supporters replied to the nomination, saying, “Well done sweetheart!!!

So so proud of you and all you achieve!!”

Kelly Reilly at the “Flight” premiere

Otherwise I’m just not interested in it," Reilly said.

Instead, she admires the careers of well-respected, but less commercialized, longtime actors.

“They can also go to the supermarket and don’t need to be adored by the general public.

Kelly Reilly with red hair

That’s the career I’d be really happy with,” she told the publication.

Reilly worked with the acclaimed actress when she was only 17 years old in “Prime Suspect.”

Travel for three years or go to university, but don’t go to drama school.'"

Kelly Reilly in Yellowstone Season 4 finale

Mirren felt it was more important for her to have real-life experience than to spend years studying drama.

As far as we can tell, it’s paid off nicely.

The pair met on the set of “Last Orders.”

Kelly Reilly posing with Sherlock Holmes cast

At the time of her 2012 interview with theEvening Standard, Reilly was sharing an apartment with Feild.

She said that he was helping her to stay grounded as her acting career took off.

I mean how lucky are we?"

Kelly Reilly taking selfie in car

But, in true Rip and Beth fashion, the wedding was far from traditional.

Reilly toldOutsider, “I love their wedding, and it’s just so typical Beth.

She’s just not interested in having a wedding party or a wedding dress or any of that.

Kelly Reilly speaking

All she cares about is being his wife and she knows that.”

Fortunately, she thought the unorthodox ceremony was meant to be.

“She played Mary Morstan, the girlfriend of Watson, portrayed by Jude Law.

Kelly Reillyposing at TV Land event

Speaking about taking the role, she explained there was one specific draw.

In the critically acclaimed performance, Reilly plays an upper-class woman.

“I don’t have any upper-class breeding in me whatsoever,” the actress said.

Eve Best, Clive Owen, and Kelly Reilly holding flowers

Despite this, the actress did say that she’d learned to like Miss Julie while playing the role.

“I didn’t like school at all,” she said.

“And I wasn’t very academic.

Kelly Reilly at Yellowstone premiere

It was an obsession.”

Reilly continues riding to this day, which became quite helpful when she started acting in “Yellowstone.”

Unfortunately, Reilly’s character, Beth, is seen on horseback the least.

She grew up riding.”

“My world suddenly became much more exciting.”

Acting helped Reilly to come out of her shell.

It was both Reilly and her co-star Owen’s first time on Broadway.

The pair seemed very excited to be part of the production, and they threw themselves into their work.

It’s also a big production with quite an impressive budget.

His co-stars, including Reilly, aren’t getting paid nearly as much.

It sends a message and that’s what we want to do."