Alexander Dobrev’s real name Alexander Kamenova Dobrev is the brother of Nina Dobrev. 

Originally, he is from Sofia, Bulgaria but is currently residing in Toronto, Ontario, Canada. 

His nationality is Bulgarian-Canadian and ethnicity is white. Well, his religion is Russian Orthodox. As per his birth date, he is of the Sagittarius zodiac sign. 

Alexander calls her sibling Nina a Guinea Pig

No doubt, siblings relationships are the most trustable and best. 

It is a mixture of love, humor, and a few silly fights. Likewise, Alexander also shares a very close bond with sister Nina. 

Moreover, the guy had explained his relationship on his social media handle. 

He stated that his younger sister is the one whom he can use as a guinea pig while trying experimental go-carts and sledges. 

Nevertheless, he got emotional in the posts and told that Nina could tackle anything.  

Further, he added that your small sister will always have faith in you and come around you asking to defend her in any type of situation.