From the famous sets to the surprise siblings, see double with 19 celebs who have a twin.

Joel Madden and Benji Madden (Identical Twins Born March 11, 1979)

Brent N. Clarke/FilmMagic

Rami Malek and Sami Malek (Identical Twins Born May 12, 1981)

Randy Holmes/ABC via Getty Images

Gisele Bundchen and Patricia Bundchen (Fraternal Twins Born July 20, 1980)

Instagram.com/gisele

Scarlett Johansson and Hunter Johansson (Fraternal Twins Born November 22, 1984)

Gary Gershoff/WireImage

Angel Carter and Aaron Carter (Fraternal Twins Born December 7, 1987)

Vincent Sandoval/WireImage

Michael Kutcher and Ashton Kutcher (Fraternal Twins Born February 7, 1978)

Adam Bettcher/Getty Images

Giovanni Ribisi and Marissa Ribisi (Fraternal Twins Born December 17, 1974)

Charley Gallay/Getty Images

Jon Heder and Dan Heder (Identical Twins Born October 26, 1977)

Barry King/FilmMagic

Parker Posey and Christopher Posey (Fraternal Twins Born November 8, 1968)

Ron Galella/WireImage

Aaron Ashmore and Shawn Ashmore (Identical Twins Born October 7, 1979)

Gilbert Carrasquillo/Getty Images

Alanis Morissette and Wade Morissette (Fraternal Twins Born June 1, 1974)

Lou Rocco/ABC via Getty Images; Instagram.com/wadeimremorissette

Kiefer Sutherland and Rachel Sutherland (Fraternal Twins Born December 21, 1966)

Galit Rodan/The Canadian Press/AP

Vin Diesel and Paul Diesel (Fraternal Twins Born July 18, 1967)

Alexander Tamargo/Getty Images; Vin Diesel via Facebook

Charlotte Ronson and Samantha Ronson (Fraternal Twins Born August 7, 1977)

Taylor Hill/FilmMagic

Eva Green and Joy Green (Fraternal Twins Born July 6, 1980)

Mychele Daniau/AFP/Getty Images

Jason London and Jeremy London (Identical Twins Born November 7, 1972)

Michael Bezjian/WireImage

Tamera Mowry-Housley and Tia Mowry (Identical Twins Born July 6, 1978)

Chelsea Lauren/WireImage

Dylan Sprouse and Cole Sprouse (Identical Twins Born August 4, 1992)

Donald Bowers/Getty Images

Mary-Kate Olsen and Ashley Olsen (Fraternal Twins Born June 13, 1986)

Rob Kim/Getty Images