She’s a stunning blond actress who grew up in a castle in Scotland and got her big break when Robert Redford cast her in “Lions for Lambs” alongside Tom Cruise and Meryl Streep.

Now Louise Linton will be one of the new cabinet wives and girlfriends destined to glam up the nation’s capital.

Linton, 34, is engaged to Steven Mnuchin, a Wall Street insider and Hollywood producer slated to be President-elect Donald Trump’s next treasury secretary.

A shapely blonde who favors dangling earrings and plunging necklines, her TV credits include “CSI: New York” and the TV movie “William & Kate.”

The LA-based Linton once self-published a memoir about time spent in Africa. But the book, “In Congo’s Shadow: One Girl’s Perilous Journey to the Heart of Africa,” was universally panned.

After that setback, she threw herself into producing movies. She is the founder and a producing partner of Stormchaser Films. She also has a minor role in Warren Beatty’s latest film, “Rules Don’t Apply,” in which Mnuchin is credited as a producer and has a cameo.

Mnuchin recently joked that his third wedding might take place on the White House lawn — which, friends said, would thrill Linton to no end. And she’s not the only one bringing a touch of high society to the capital.

Trump’s selection for commerce secretary is Wilbur Ross — and his blue-blooded wife, Hilary Geary Ross, 66, is well-known on the New York City, Southampton and Palm Beach social circuit.

The Manhattanite throws fabulous parties and is expected to become the top hostess in DC, friends said. “She is great — a real society person,” noted a New York-based power player. “She is involved in lots of charities.”

Hilary’s written about the money and people who dominate her social circles for Quest and New York Social Diary.

She was the society editor for Q magazine and has been featured in Town & Country, W and Architectural Digest.

She also is pals with the Scottish-born society photographer Harry Benson, 86, which led to her collaboration with him on two books: “Palm Beach People” and “New York New York.”

Benson took the photos. Hilary wrote the text. Those profiled included Donald and Melania, of course, at their homes in Trump Tower and Palm Beach.

Dr. Elizabeth “Betty” Price, 64, is known as being one half of a power couple with Tom Price, Trump’s pick for health and human services secretary. She was elected to the Georgia House of Representatives in a special election last year.

Like her husband, who is the chairman of the House Budget Committee, Betty is a medical doctor. She earned her degree from McGill University in Canada.

They met in a hospital, on a weekend “filled with gunshot wounds and amputations.” She was an anesthesiologist, he was a surgeon. “We made a great team,” she once said.

“Both of us are energetic. Some people get by. For whatever reason, we’re obsessed with overachievement, I guess.”

She spent five years as a Roswell, Ga., city councilwoman and served on the boards of several nonprofits. They have one adult son. In past interviews, she has made it clear she is her own woman.

“I’ve done my spouse thing in Washington,” she said. “I chaired a number of things, have been president of a couple things. Been there, done that.”

Susan Pompeo, 59, is the wife of incoming CIA Director Mike Pompeo. They have one son, Nicholas, and a golden retriever named Patton — after Gen. George Patton.

At home at the Wichita (Kan.) Country Club, Susan, a graduate of Wichita State, once told a reporter that she considers herself an equal partner in her marriage.

The Pompeos have computers that face each other in their shared office at home, and they make family decisions together.

“We work well together, and I want to feel like I’m helping,” she said.

When Mike first ran for Congress, Susan said, they ran as a team.

“We decided we would do this together. We set out to do this like we would do any venture.” She also said of Washington, “for us it could never be home. Wichita is home, and we get back here as often as we can.”

As for social obligations, she said, “We do very little of the hoity-toity stuff in Washington, but I have made friends with several of the spouses,” she said.

Retired Army Lt. Gen. Michael Flynn is Trump’s pick for national security adviser. He and his wife, Lori, 56, have two children and were high school sweethearts.

She prides herself on being a soldier’s wife and has played an active role in the lives of those in the military and their families during their deployments, she has said.

She’s also raised her kids at times like a single mom — teaching, coaching and chauffeuring them around. She attended Middletown High School in Rhode Island.

Sally Priebus, 42, and husband Reince, the future White House chief of staff, were also high school sweethearts.

They met at an Illinois church when he was 18 and she was 16. He asked her to the prom. She went. They dated, broke up and got back together.

Married in 1999, they have two kids, Jack and Grace. Their first date, Reince said, was a Lincoln Day dinner with GOP Congressmen Henry Hyde and Jim Sensenbrenner.

Sally describes herself as a typical Midwestern homemaker. She plays piano and although she misses her home state of Wisconsin, she has become well adjusted to life in DC.

Mary Blackshear Sessions, 69, is married to Sen. Jeff Sessions, the pick for attorney general. Her husband once boasted that she had a T-shirt saying “GRITS” because it is both a Southern favorite for breakfast and an acronym for “girls raised in the South.”

She was born in Gadsden, Ala., and while her social-media profile is a bit lacking, the mother of three children and the grandmother of 10 does have her own Facebook page.

Another glam wife will be French Canadian-born Sylvie Légère, 48, who has been married to Trump’s deputy commerce secretary pick, Todd Ricketts, for the past 13 years.

Todd’s family has a $1 billion net worth, and he is co-owner of the Chicago Cubs.

Sylvie and Todd live in Wilmette, Ill., and operate the Higher Gear bike shops. They both love to cycle, and Sylvie launched a weekly women’s riding program and clinic.

“Through the clinic, we want women to be more confident on their bikes, and we’re trying to get more women to participate in races and become really active in the sport,” she said.

The two are also involved in charities including Opportunity Education and the dZi Foundation. Sylvie is also the co-founder of The Policy Circle, which hopes to bring women together to discuss policy ideas regarding free market practices and policies.

“The key to our relationship is having zero expectations when it comes to traditional roles,” Todd said. “We both do whatever it takes to get through the day. There’s not one person who takes out the garbage or mows the lawn.”

Sylvie also keeps her husband on a tight leash. “I make an effort to get home by 5 p.m. at the latest every day,” he said.