Celebs you didn't know were related

Courteney Cox and Matthew Perry -
In May of 2021, researchers at the online genealogy website MyHeritage discovered that co-stars Courteney Cox and Matthew Perry are actually related.

Jessica Capshaw and Steven Spielberg - The 'Grey's Anatomy' actress is the stepdaughter of acclaimed director Steven Spielberg.

Jason Momoa and Zoë Kravitz - The 'Aquaman' actor was in a relationship with Zoë's mother, Lisa Bonet, from 2005 until 2022, and they were married for the last five years. 

Luke and Owen Wilson - As famous as they are, many people don't know these two funny actors are siblings.

Joan and John Cusack - It's impossible to not see the resemblance between the two Hollywood actor siblings.

Lily and Alfie Allen - The singer and the 'Game of Thrones' actor are siblings.

Bryce Dallas Howard and Ron Howard - The Oscar-winning director of 'A Beautiful Mind' is the father of 'Jurassic World' star Bryce Dallas Howard.

Blake Lively and Robyn Lively - The two actresses are not only half-sisters, they're also best friends! Several of their other siblings are also actors.

Emma Roberts - Talent sure runs in the family, as Eric's daughter (Julias's niece), Emma, is now a brilliant actress in her own right.

Hilary and Haylie Duff - Hilary Duff’s older sister isn’t nearly as famous, but she’s also an actress and singer. 

Chad and Rob Lowe - Hollywood heartthrob Rob Lowe's younger brother is Emmy-winning actor Chad Lowe. Chad was also famously married to Hilary Swank for 10 years.

Tom Cruise and William Mapother - Only a few know that Cruise's cousin is 'Lost' and 'The Mentalist' star William Mapother.

Reba McEntire and Kelly Clarkson - Reba McEntire was Kelly Clarkson's mother-in-law for many years, as she is stepmother to Clarkson's ex-husband, Brandon Blackstock.

Shirley MacLaine and Warren Beatty - Acting talent sure runs in this family, as the two siblings and Os

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