Brazilian actress daughter of actress Glória Pires and singer-songwriter Fábio Júnior, Cléo Pires is also half-sister of the actor and singer-songwriter Filipe Galvão. She first gained notoriety for her roles in the 2003 film Benjamim and in the 2005 telenovela América. Cléo Pires was awarded Best Actress in the 2003 International Rio Film Festival for her role in Benjamim.
Cléo Pires was also cover of the Brazilian edition of Playboy magazine in August 2010. It was a special edition that celebrates the 35th anniversary of the magazine in Brazil.