80+ Celebrity Siblings, From the Hemsworths to the Cyruses

Penélope is a major star who has starred in films like "Volver," "Blow," and "Vanilla Sky." Mónica is also a Spanish actor and dancer and even stood in as a body double for her sister during filming for "Pirates of the Caribbean: On Stranger Tides" in 2010.

The ladies have a younger brother named Eduardo who is a musician and has worked on the scores for some of Penélope's films, including "Pirates of the Caribbean: On Stranger Tides" and "Twice Born."