Is there still a dictator in the Dominican Republic?

No, the country has a democratic government selected each 4 years by the votes of the citizens mayor of 18 years old.

The actual president is Danilo Medina of the Dominican Liberation Party, and before him was Leonel Fernandez Reyna which has been 8 consecutive years 2004-2012 and 4 more before in 1996-2000, in total had 12 years in goverment selected my the citizens.