Classically handsome actor who, after playing younger leading men, such as on "Falcon Crest" (CBS, 1981-90), settled into action heroes in low-budget martial arts features and the syndicated "Renegades" (1992- ). Lorenzo Lamas was the son of actor Fernando Lamas and actress-model Arlene Dahl and the stepson of musical swimming star Esther Williams. Lamas was barely out of his teens when he began to win roles. He played a friend of the son of Dobie Gillis on the CBS reunion special, "Whatever Happened to Dobie Gillis" (1977), and, in 1979, had his first regular series berth playing Rick, who