Not the new president, Raul, although he has promised to push through "structural and conceptual" changes to this communist island in the Caribbean.
It is Raul's daughter, Mariela Castro.
As head of the government-funded National Centre for Sex Education, she is trying to change people's attitudes towards minority groups in the community.
She is currently attempting to get the Cuban National Assembly to adopt what would be among the most liberal gay and transsexual rights law in Latin America.
The proposed legislation would recognise same-sex unions, along with inheritance rights. It would also give transsexuals the right to free sex-change operations and allow them to switch the gender on their ID cards, with or without surgery.
There are limits: adoption is not included in the bill and neither is the word marriage.
Castro champions gay rights in Cuba
BBC News, UK
