Check out the brothers and sisters of these 20 celebrities

We know their movies or dance along to their songs, but what goes on behind their red carpet personas is often a mystery... Celebrities also have private lives and this selection's dedicated to their brothers and sisters, whose photos often grace their social networks on April 10th when the US celebrates National Siblings Day! 

Some brothers or sisters are equally famous, but a lot of celebrities' siblings prefer to shun the spotlight and lead more discreet lives!

1. Penelope Cruz with her sister Monica. They're both actors, but Monica's also a dancer

2. Emma Watson posing her brother, Alex

Stephen Lovekin

3. Elijah Wood and his little sister, Hannah

Todd Oren

4. Chris Hemsworth beside brothers Liam and Luke

Barry King

5. Antonia, Nicole Kidman's sister

Getty Images

6. Lady Gaga (Stefani Joanne Angelina Germanotta) photographed here with her sister, Natali Germanotta


7. Maisie Williams posing next to her brother


8. Brad Pitt and his brother, Doug

Alex Berliner

9. Here's Eddie Redmayne with Tom, his younger brother

Dave M. Benett

10. Scarlett Johansson has a twin brother called Hunter

Carmen Valdes

11. Zooey Deschanel with her equally famous sister, Emily

Charley Gallay

12. Ashton Kutcher with his twin, Michael

Adam Bettcher

13. Lupita Nyong'o links arms with her brother Peter

Jeff Kravitz

14. Angelina Jolie next to her brother, James Haven

Kevin Winter

15. Zack Efron has a younger brother called Dylan

16. Daisy Ridley posing with her sisters Kika and Poppy

17. Jared Leto with his brother, Shannon


18. Jake and Maggie Gyllenhaal, both famous in their own right

George Pimentel

19. Cameron Diaz with her sister, Chimene

Ron Galella

20. Jude Law and his sister, Natasha

Rebecca Reid