De la Rosa starred in the 1987 feature Italian horror film made in Dominican Republic called Ratman. During the 1990s Nelson continued his path to international success by becoming a staple guest at Venevision's television show Súper Sábado Sensacional in Venezuela, and, later on, he would be invited as a guest to Don Francisco's show, Sábado Gigante, and to other Univision shows. His popularity took him to other Hispanic countries such as Argentina, where he featured several times in Susana Giménez show, Puerto Rico, Mexico, Spain and others. He married, and had a son.