Celebrities You Didn’t Know Were In-Laws

While the phrase “nepo baby” has become an all-too-common way to say someone’s born into a famous family, there’s yet to be a word, or a phrase, to describe someone who married into one. After all, countless celebrities have now married other celebrities and have blended celebrity families.

Emily Blunt, for example, is lucky enough to call her The Devil Wears Prada co-star Stanley Tucci not only a friend but her brother-in-law too. Tucci married Emily’s sister, Felicity, back in 2012. “They’re a culinary super couple,” the Oppenheimer star gushed of her sister and her husband back in 2021 during an appearance on LIVE With Kelly and Ryan.

The same goes for Ashlee Simpson, who not only is sister-in-law with Tracee Ellis Ross but became Diana Ross’s daughter-in-law after her marriage to Evan Ross back in 2014. Talk about a famous family!

We’ve got all of the celebrities you might not have realized were each others in-laws below!

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Emily Blunt & Stanley Tucci

Emily Blunt & Stanley Tucci
Emily Blunt & Stanley Tucci

Emily Blunt is nothing but supportive when it comes to her brother-in-law and The Devil Wears Prada co-star Stanley Tucci.

“He’s authentic and irreverent in the best way ever,” Blunt once told People. “He just gets life, and I absolutely worship the guy.”

Tucci has been married to Blunt’s older sister, Felicity Blunt, since 2012.

Chris Pratt & Arnold Schwarzenegger

Chris Pratt & Arnold Schwarzenegger
Chris Pratt & Arnold Schwarzenegger

Arnold Schwarzenegger hasn’t shied away over the years from praising his son-in-law, Chris Pratt, after he married his daughter, Katherine Schwarzenegger in June 2019.

“I’m really happy that my daughter has found him. And that he has found her… they found each other,” the Terminator star told the New Heights podcast, per People. “Because they fit really well together and they just look wonderful together. They’re so in love with each other.”

Tracee Ellis Ross & Ashlee Simpson

Tracee Ellis Ross & Ashlee Simpson
Tracee Ellis Ross & Ashlee Simpson

When Ashlee Simpson married Evan Ross back in 2014, she not only became Tracee Ellis Ross’ sister-in-law, but the iconic Diana Ross became her mother-in-law too. Two famous families becoming one!

Cameron Diaz & Nicole Richie

Cameron Diaz & Nicole Richie
Cameron Diaz & Nicole Richie

Nicole Richie doesn’t shy away from fangirling over her sister-in-law, Cameron Diaz.

“[She] knows what a big fan I am of her acting and I’m not ashamed about it at all,” Richie said on the Everything Iconic podcast, per E! News.

Diaz is married to Benji Madden while Richie is married to his twin-brother, Joel Madden.

Blake Lively & Bart Johnson

Blake Lively & Bart Johnson
Blake Lively & Bart Johnson

In one major childhood crossover, Gossip Girl alum Blake Lively is the sister-in-law to none other than Coach Bolton in the High School Musical franchise, Bart Johnson. Johnson is married to her sister, Robyn Lively, since 1999. Who knew?

Meryl Streep & Mark Ronson

Meryl Streep & Mark Ronson
Meryl Streep & Mark Ronson

Can you imagine having a mother-in-law like Meryl Streep? For music producer Mark Ronson, that became a reality when he married Streep’s daughter, Grace Grummer, in 2021.

Reba McEntire & Kelly Clarkson

Reba McEntire & Kelly Clarkson
Reba McEntire & Kelly Clarkson

During Reba McEntire’s marriage to her ex-husband Narvel Blackstock from 1989 to 2015, she became fellow singer Kelly Clarkson’s stepmother-in-law during Clarkson’s marriage to her ex, Brandon. But while those relationships didn’t pan out, they still keep in touch.

“We text each other all the time,” Clarkson said on What What Happens Live, adding they’re “both women of sound mind that know that life doesn’t work out sometimes.”

Jake Gyllenhaal & Peter Sarsgaard

Jake Gyllenhaal & Peter Sarsgaard
Jake Gyllenhaal & Peter Sarsgaard

Jake Gyllenhaal is not only Peter Sarsgaard’s brother-in-law (Sarsgaard has been married to Maggie Gyllenhaal since 2009) but his co-star too!

“I think we both agree that it absolutely helps,” Gyllenhaal told Today of working with Sarsgaard in their new show, Presumed Innocent. “If you have a history with someone and you come into a scene and it’s a fictional world, you get to bring all of that stuff.”

Patrick Wilson & Scott Foley

Patrick Wilson & Scott Foley
Patrick Wilson & Scott Foley

Speaking of relatives and co-stars, Patrick Wilson and Scott Foley, who co-starred in Let’s Kill Ward’s Wife, are brothers-in-law. Wilson is married to Dagmara Dominczyk since 2005 while Foley is married to her sister, Marika Domińczyk.

Mark Wahlberg & Jenny McCarthy

Mark Wahlberg & Jenny McCarthy
Mark Wahlberg & Jenny McCarthy

Back in 2014, Jenny McCarthy married Donnie Wahlberg, Mark Wahlberg’s older brother. The Masked Singer meets The Fighter!

Lily Collins & Ted Danson & Mary Steenburgen

Lily Collins & Ted Danson & Mary Steenburgen
Lily Collins & Ted Danson & Mary Steenburgen

Lily Collins, the daughter of Phil Collins, was born into Hollywood royalty so it’s no surprise she married into another famous family too. In 2021, the Emily in Paris star married Charlie McDowell, the son of Malcolm McDowell, Mary Steenburgen and stepson of Ted Danson. Famous all around!

Millie Bobby Brown & Jon Bon Jovi

Millie Bobby Brown & Jon Bon Jovi
Millie Bobby Brown & Jon Bon Jovi

Jon Bon Jovi already proved he’s a big fan of his new daughter-in-law Millie Bobby Brown. His son, Jake Bongiovi, tied the knot with The Stranger Things star in May 2024.

“They’re absolutely fantastic,” he told BBC’s The One Show, per The Hollywood Reporter. “It was a very small family wedding, and the bride looked gorgeous, and Jake is happy as can be. Yeah, it’s true.”

Lenny Kravitz & Channing Tatum

Lenny Kravitz & Channing Tatum
Lenny Kravitz & Channing Tatum

While Channing Tatum and Zo? Kravitz have yet to get married (the pair is currently engaged), Lenny Kravitz is already taking Tatum under his wing as his son-in-law.

“He was raised well. So, you know, he’s got manners. He’s charming. He’s a soulful human being,” the “Fly Away” singer told BBC’s Zoe Ball and Friends podcast, per People. “And so, he’s become part of the family quite quickly. He fits, and they’re in love.”

Zooey Deschanel & David Hornsby

Zooey Deschanel & David Hornsby
Zooey Deschanel & David Hornsby

If you’re a fan of New Girl and It’s Always Sunny in Philadelphia, we’re guessing you might be freaking out seeing these two together. As it turns out, Zooey’s sister and fellow actress Emily Deschanel has been married to David Hornsby (aka Rickety Cricket in It’s Always Sunny) since 2010. They also share kids Henry, born in 2011, and Calvin, who joined the family in 2015.

Jonathan Scott & Emily Deschanel

Jonathan Scott & Emily Deschanel
Jonathan Scott & Emily Deschanel

Also connected in the Deschanel family, Emily is sister-in-law to her sister’s fiancé, Property Brother Jonathan Scott. The two have been engaged since August 2023.

Alison Brie & James Franco

Alison Brie & James Franco
Alison Brie & James Franco

While Dave Franco has been with Alison Brie for over a decade (since 2011), some might still not have put together that that means she’s James Franco’s sister-in-law too. The three of them even worked together in 2017’s The Disaster Artist. Talk about a family affair!

Casey Affleck & Joaquin Phoenix

Casey Affleck & Joaquin Phoenix
Casey Affleck & Joaquin Phoenix

In addition to once being best friends, Oscar winners Casey Affleck and Joaquin Phoenix were also once related too. Between 2006 and 2017, Affleck was married to Joaquin’s sister, Summer Phoenix.

Affleck and Summer’s split, however, caused quite a divide between the friends. “My sister and him divorced,” the Joker star told Vanity Fair in 2019. “And I haven’t spoken directly to him or indirectly in a long time. Three or four years.”

Penn Badgley & Jemima Kirke

Penn Badgley & Jemima Kirke
Penn Badgley & Jemima Kirke

While you might’ve seen Girls and Gossip Girl, you might not have known that Penn Badgley is Jemima Kirke’s brother-in-law. Badgley started dating her sister Domino Kirke in 2014, got married in 2017, and welcomed their son, James, in 2020.

David Harbour & Alfie Allen

David Harbour & Alfie Allen
David Harbour & Alfie Allen

David Harbour makes up one of our favorite couples in Hollywood with his wife, Lily Allen. The pair have been together since 2019 and got married during the COVID-19 pandemic in 2020. Allen just happens to be the brother of Game of Thrones star Alfie Allen.

Jack Antonoff & Andie MacDowell

Jack Antonoff & Andie MacDowell
Jack Antonoff & Andie MacDowell

Music producer and Grammy winner Jack Antonoff has been married to Andie MacDowell’s daughter Margaret Qualley since 2023. They first started dating back in 2021. We bet Antonoff was quite nervous to meet his mother-in-law back then!