Harrison Ford, who plays patriarch Jacob Dutton in 1923, has been married to actress Calista Flockhart since 2010.

Considering their 22-year age difference, the couple seemed an unlikely pair when they began dating in 2002.

"It doesn't faze me," Flockhart told Hello! in 2003 when addressing their age gap. "It doesn't factor into our relationship at all."

Ford was previously married twice and welcomed four children. He later adopted Flockhart's son, Liam, whom she adopted in 2001.

Helen Mirren, who portrays matriarch Cara Dutton, has a longtime love of her own: her husband Taylor Hackford.

Mirren and the Oscar-winning director dated for 11 years before they wed in 1997.

"We got married in the end because we realized that we were going to be together forever," the actress told AARP in 2016. "And our families, we sensed, wanted us to be married."

She continued, "I always said I have nothing against marriage; it just wasn't to my taste, like turnips. It took me a very long time to come round to acquiring the taste. I just had to meet the right turnip."

Hackford was married twice before Mirren and welcomed two sons: Alexander and Rio, who died of a rare and aggressive form of cancer in 2022.

Brandon Sklenar, who plays Spencer Dutton, has been dating his girlfriend, Courtney Salviolo, since at least 2022, but the pair keep their romance under wraps.

"I’m a private person and very protective over my home life outside of this world," Sklenar wrote in the comments under an E! News Instagram post after the couple made their red carpet debut at the It Ends With Us New York City premiere in August 2024.

Salviolo also joined her beau at the season 2 premiere of 1923 in February 2025. While posing for photos, they didn't shy away from the PDA.

Darren Mann, who portrays Jack Dutton, has been married to his wife, Jesi Mann, since 2021. The couple wed in Puerto Rico, per Instagram.

"Life with you still feels like a honeymoon," Jesi wrote on the social media platform in honor of their third wedding anniversary in December 2024.

In the comments, Darren responded: "Love you always xoxo."

Michael Greyeyes stars as Hank Plenty Clouds in 1923, and he's been married to former Polish-American dancer Nancy Latoszewski for at least 20 years, per Cowboys & Indians.

While little is known about their relationship, the couple have appeared on several red carpets together, including at the 2022 Film Independent Spirit Awards.

Greyeyes and Latoszewski share two daughters: Eva, an aspiring actress, and Lilia, who has followed in her mom's footsteps and is an apprentice at the American Ballet Theatre, according to Instagram.

Jennifer Ehle, who plays Sister Mary, wed actor Michael Ryan in 2001.

"To find this man, who is quiet and lovely, is the best thing that has happened to me," the actress said in a 2002 interview. "Michael really did sweep me off my feet."

The couple share two kids: son George and daughter Talulah, per The Guardian.

Sebastian Roché, who plays Father Renaud, has been married to actress Alicia Hannah-Kim since 2014.

With Roché filming 1923 and Hannah-Kim shooting season 6 of Netflix's Cobra Kai, the couple admitted to PEOPLE in February 2025 that they "barely" saw each other the year prior and "completely forgot" their 10th wedding anniversary.

"We were FaceTime married," Hannah-Kim joked.

Jennifer Carpenter, who plays newcomer Mamie Fossett, has been married to her husband Seth Avett — one of the founding members of the American folk-rock band The Avett Brothers — for nearly a decade.

"It feels very right, and it feels good to have the ring on my finger,” Seth told PEOPLE in 2016, shortly after the couple's North Carolina nuptials.

Carpenter, who was previously married to her Dexter costar Michael C. Hall from 2008 to 2011, shares a son named Isaac with Avett. They welcomed their only child a year before tying the knot.