Mercedes began acting at an early age. She participated in theater festivals within Venezuela and abroad. Throughout her career she has been nominated for best actress multiple times and she has received recognition for her long career in theater. She held the record at Microteatro Venezuela as the actress with the most monologues performed at this event. Her monologues broke box office records, making her one of the most recognized comedy actresses in Microteatro Venezuela. Her participation in cinema was in 2017 with the film Papita, maní y tostón 2da Base. This film being the highest grossing of that year, and Mercedes' comedic skills stood out in the movie.