We bet you didn't know these celebs were siblings. Our countdown includes Lily & Alfie Allen, Chris & Scott Evans, Melissa & Sara Gilbert, and more! Who are YOUR favorite celebrity siblings? Let us know in the comments!

Watch more great celeb videos here:
Top 10 Celebrity Siblings Who Have Appeared Together on Screen -    • Top 10 Celebrity Siblings Who Have Ap...  
Top 20 Celebs You Didn't Know Have Twin Siblings -    • Top 20 Celebs You Didn't Know Have Tw...  
Top 10 Celebrity Siblings That HATE Each Other -    • Top 10 Celebrity Siblings That HATE E...  

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