15+ On-Screen Siblings That Look So Much Alike They Could Pass As Actual Relatives In Real Life

Their resemblance is just *chef's kiss*!

If there's an underrated behind-the-scenes person in the making of a movie or TV show, it's the casting director. It's easy to applaud the directors, producers, and even the costume designers, but what most people overlook is the sheer talent of casting directors in finding the perfect actor for a specific character—especially when they are choosing between actors who are just starting out.

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Casting directors take into consideration the acting styles, physique, originality, creativity, and listening skills of aspiring actors to determine if they are fit for a role. Sometimes, there are even instances where they like an actor's personality so much that they create a whole new character for them, just like how Chris Colfer landed the role of Kurt Hummel in Glee!

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One satisfying aspect and a clear sign that the casting directors did their job right is seeing an on-screen family actually looking like a family. Take the actor who plays Adam Groff and his dad, the principal, in Netflix's Sex Education, for example—it's hard to believe that they aren't actually related in real life because, well, look at their faces, especially their noses!

Now, have you noticed some on-screen siblings who look eerily similar to each other, so much so that they could pass as actual siblings in real life? For instance, have you ever noticed how Georgie Henley and William Mosely, as Lucy and Peter Pevensie, look like an actual brother and sister duo?

Take a look at some more of our favorite on-screen siblings who look so much alike that they could pass as actual family off-screen:

1. Rue (Zendaya) and Gia Bennett (Storm Reid) from Euphoria

1. Rue (Zendaya) and Gia Bennett (Storm Reid) from EuphoriaHBO
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2. Callie Jacob (Maia Mitchell) and Sophia Quinn (Bailee Madison) from The Fosters

2. Callie Jacob (Maia Mitchell) and Sophia Quinn (Bailee Madison) from The FostersFreeform
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3. Iris (Candice Patton) and Wally West (Keiynan Lonsdale) from The Flash

3. Iris (Candice Patton) and Wally West (Keiynan Lonsdale) from The FlashThe CW

4. Derek (Patrick Dempsey) and Amelia Shepherd (Caterina Scorsone) from Grey's Anatomy

4. Derek (Patrick Dempsey) and Amelia Shepherd (Caterina Scorsone) from Grey's AnatomyABC

5. J.D. (Zach Braff) and Dan Dorian (Tom Cavanagh) from Scrubs

5. J.D. (Zach Braff) and Dan Dorian (Tom Cavanagh) from ScrubsNBC / Everett Collection

6. Amy (Emily VanCamp) and Bright Abbott (Chris Pratt) from Everwood

6. Amy (Emily VanCamp) and Bright Abbott (Chris Pratt) from EverwoodThe WB / Everett Collection

7. Spencer (Troian Bellisario) and Melissa Hastings (Torrey DeVitto) from Pretty Little Liars

7. Spencer (Troian Bellisario) and Melissa Hastings (Torrey DeVitto) from Pretty Little LiarsFreeform

8. Elliot (Rami Malek) and Darlene Alderson (Carly Chaikin) from Mr. Robot

8. Elliot (Rami Malek) and Darlene Alderson (Carly Chaikin) from Mr. RobotUSA

9. And finally, Jean-Ralphio (Ben Schwartz) and Mona-Lisa Saperstein (Jenny Slate) from Parks and Recreation

9. And finally, Jean-Ralphio (Ben Schwartz) and Mona-Lisa Saperstein (Jenny Slate) from Parks and RecreationNBC

10. Heather (Betsy Brandt), Greg (Colin Hanks), and Matt Short (Thomas Sadoski) from Life in Pieces

10. Heather (Betsy Brandt), Greg (Colin Hanks), and Matt Short (Thomas Sadoski) from Life in PiecesCBS

11. Monica (Courteney Cox) and Ross Geller (David Schwimmer) from Friends

11. Monica (Courteney Cox) and Ross Geller (David Schwimmer) from FriendsPaul Drinkwater / NBC via Getty Images

12. Kevin (Alex R. Hibbert) and Kiesha (Birgundi Baker) from The Chi

12. Kevin (Alex R. Hibbert) and Kiesha (Birgundi Baker) from The ChiElizabeth Sisson / SHOWTIME

13. Haley (Bethany Joy Lenz), Quinn (Shantel VanSanten), and Taylor James (Lindsey McKeon) from One Tree Hill

13. Haley (Bethany Joy Lenz), Quinn (Shantel VanSanten), and Taylor James (Lindsey McKeon) from One Tree HillThe CW

14. Katie (Chloe Rose) and Maya Matlin (Olivia Scriven) from Degrassi: The Next Generation and Degrassi: Next Class

14. Katie (Chloe Rose) and Maya Matlin (Olivia Scriven) from Degrassi: The Next Generation and Degrassi: Next ClassTeenNick

15. Frasier (Kelsey Grammer) and Niles Crane (David Hyde Pierce) from Frasier

15. Frasier (Kelsey Grammer) and Niles Crane (David Hyde Pierce) from FrasierNBC

16. Betty (Lili Reinhart) and Polly Cooper (Tiera Skovbye) from Riverdale

16. Betty (Lili Reinhart) and Polly Cooper (Tiera Skovbye) from RiverdaleThe CW / Everett Collection

17. Elijah (Daniel Gillies) and Kol Mikaelson (Nathaniel Buzolic) from The Vampire Diaries

17. Elijah (Daniel Gillies) and Kol Mikaelson (Nathaniel Buzolic) from The Vampire DiariesThe CW

18. Steven (Michiel Huisman), Shirley (Elizabeth Reaser), Theo (Kate Siegel), Luke (Oliver Jackson-Cohen), and Nell Crain (Victoria Pedretti) from The Haunting of Hill House

18. Steven (Michiel Huisman), Shirley (Elizabeth Reaser), Theo (Kate Siegel), Luke (Oliver Jackson-Cohen), and Nell Crain (Victoria Pedretti) from The Haunting of Hill HouseNetflix

19. Lexie (Jade Pettyjohn), Tripp (Jordan Elsass), Moody (Gavin Lewis), and Izzy Richardson (Megan Stott) from Little Fires Everywhere

19. Lexie (Jade Pettyjohn), Tripp (Jordan Elsass), Moody (Gavin Lewis), and Izzy Richardson (Megan Stott) from Little Fires EverywhereHulu

Casting directors truly deserve recognition for their excellent casting skills because, in a way, they significantly enhance the entire story. While Hollywood often brushes off genetic logic when casting actors as families, some casting directors take their job seriously, and it shows!

Do you know of any more on-screen siblings who could pass as an actual family in real life? Share your thoughts in the comments, or share this article with your family and friends!

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