Rebecca Ferguson as Isabella Shaw 

If you are asking me to pick family over love. My answer is love  

Her controlling brother  

You and Shaw aren't really 

Her questionable  sister 

Why did you pick him over us, we are family 

Her twin brother 

Welcome to the family Deckard, if you ever hurt my sister, you will regret it 

The love of her life 

I will always stand by her no matter what

Another fast and furious cast as their characters