Marilyn Monroe and Dakota Johnson Are Related, New Research Shows 2026

Marilyn Monroe and Dakota Johnson are related, according to new genealogy research from MyHeritage, revealing that the two Hollywood stars are ninth cousins three times removed. This surprising celebrity connection adds a fascinating layer to the upcoming film Flesh Impact, where Johnson portrays Monroe in her prime.

How Are Marilyn Monroe and Dakota Johnson Related?

The shared ancestry traces back to Richard and Charity Tydings, 17th-century English settlers in Maryland. Marilyn Monroe descends from their daughter Pretitia, while Dakota Johnson and her father Don Johnson descend from Pretitia's younger sister, Mary. This makes the actresses ninth cousins three times removed.

While ninth cousins may seem distant, in genealogical terms, it's a notable connection—especially when it results in casting a relative to play an iconic legend. The press release from MyHeritage highlights this as a unique Hollywood scoop.

Other Famous Celebrity Family Connections

Johnson and Monroe aren't the only stars with surprising family ties. For example, Kit Harington is a direct descendant of Robert Catesby, the leader of the failed Gunpowder Plot of 1605. Harington played Catesby in the 2017 BBC series Gunpowder, making his performance a deeply personal one.

Such discoveries often come from genealogy platforms like Famouskin and MyHeritage, which use historical records and DNA analysis to uncover hidden relationships.

What Does This Mean for the Film 'Flesh Impact'?

The film, written and directed by Maggie Gyllenhaal, will premiere at the Venice Film Festival to mark Marilyn Monroe's 100th birthday. It features two versions of Monroe: one played by Ellen Burstyn as “a version of Monroe the world never got to see,” and the other by Dakota Johnson in her prime.

The resemblance between Johnson and Monroe has been noted, and now we know why—it's not just makeup and styling. This familial link adds authenticity to Johnson's portrayal, making the casting choice feel almost destined.

Key Takeaways

• Marilyn Monroe and Dakota Johnson are ninth cousins three times removed.
• Their common ancestors are Richard and Charity Tydings, 17th-century Maryland settlers.
• The connection was revealed by MyHeritage ahead of the Venice Film Festival premiere.
• Other celebrities like Kit Harington also have notable historical family ties.

Comparison: Celebrity Genealogy Discoveries

Why Genealogy Matters in Hollywood

Genealogy research has become a popular tool for casting directors and filmmakers seeking authentic connections. Discovering that an actor is related to a historical figure can enhance a performance and create compelling press narratives.

For fans, it adds a layer of intrigue and makes the on-screen portrayal feel more personal. It also sparks interest in family history and encourages people to explore their own roots.

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