Did you know these stars had twin siblings?

Scarlett Johansson has a twin brother, and he is active in the movie industry like she is. Want to know who it is? Check out this gallery of celebrities and their (sometimes famous) twin siblings.

This duo of actresses and businesswomen is generally known as the Olsen twins. Born in 1986, they rose to fame as child actresses (playing one girl among the two of them) in 'Full House'. Since then, they have shared the big screen and even ran a business venture outside of Hollywood.

Scarlett Johansson's twin brother is Hunter. He is also an actor and he worked with his sister in the movie 'Manny & Lo' in 1996. The siblings get along very well and sometimes appear together on red carpets or at public events.

Alanis Morissette has a twin brother, did you know that? He's called Wade and is a music lover just like his famous sister. Wade is a yoga instructor, musician, and writer.

Image: Alanis Morissette / Instagram

You may remember Aaron Ashmore from 'Veronica Mars', 'Regression' or 'Smallville', among many projects. His twin, Shawn, has appeared in films such as 'X-Men', 'Frozen' and the series 'The Rookie'. Both share a love for the screen and we assure you that it is very easy to confuse them.

Laverne Cox was one of the stars of the hit series 'Orange is the New Black,' and yes, she also has a twin brother. His name is M. Lamar and he's making a name for himself as a musician.

Image: Laverne Cox / Instagram

Ashton Kutcher has achieved international fame thanks to his many films and TV series appearances, but what few people know is that he also has a twin brother. Michael Kutcher was born with heart problems and has cerebral palsy. At the age of 13, he underwent a heart transplant, and his twin brother Ashton stayed by his side through it all.

Giovanni and Marissa Ribisi share not only a birthday but also a love of cinema, a talent for acting, and a mutual affection for each other. Marissa has appeared in films such as 'Dazed and Confused', 'Pleasantville' and the 'Brady Bunch' series, while Giovanni could be seen in 'Ted' and 'Avatar', among others. In addition, and curiously, both participated at some point in the series 'Friends'.

The Brazilian top model is another celebrity who also has a twin sister. They are not identical because they are fraternal twins. This means that they were conceived at the same time but in different eggs and placentas. Patricia tried out the catwalks like her sister, but she finally opted for the business world and became the model's manager.

Picture: Gisele Bündchen / Instagram

Remember the red-headed brothers from Harry Potter? Well yes, these two British actors are twins in real life, although they don't have red hair as you'll notice.

Both were well-known actors in Hollywood, but Jeremy has been more of a TV actor while Jason chose to focus on film. Still, both achieved great recognition in the 90s.

The Emmy-winning actor, who won the award for his role in the hit series '24', also has a twin sister. They were born within minutes of each other and her name is Rachel. His sister also works in Hollywood, but behind the scenes, as a post-production supervisor. In the photo, the actor poses with his mother and sister.

Rami Malek introduced his equally handsome twin brother Sami on Jimmy Kimmel's show. Sami is a high school teacher in Los Angeles, while Rami Malek has appeared in 'Mr. Robot', 'Battleship' and 'Bohemian Rhapsody', to name a few.

Starring in 'The Fast and the Furious', Vin Diesel is an internationally renowned actor. What few people know, however, is that he too has a twin brother. It was Vin Diesel himself who revealed it through his social media after congratulating his brother, Paul Vicent, on his birthday. Paul is a film producer and editor who prefers to remain anonymous. That's not all too difficult, because the twins don't look much alike.

Image: Vin Diesel / Instagram

Having a twin has multiple benefits. Actress Linda Hamilton knows that perfectly, because when looking for a stunt double in the movie 'Terminator 2', Linda decided that no one was better suited than her twin sister Leslie Hamilton.

You may remember Nicholas Brendon for his role in the legendary series 'Buffy the Vampire Slayer'. And now you'll know that he is also a celebrity with a twin brother. Kelly looks so much like his brother that he's been able to play the actor's double on more than one occasion.