He ruptured both his vocal cords during his senior year of college, so he created the position of actor-in-residence, where he worked as an interpreter for ballet, opera, and orchestra companies in Washington.
He also taught mime and movement classes during this period.
In 1977, Duffy landed the role of Mark Harris in the short-lived television series Man from Atlantis.
Following the series' cancellation in early 1978, he got his big break in the role of Bobby Ewing, opposite Barbara Bel Geddes and Larry Hagman, on the soap opera Dallas. Despite its success, Duffy opted to leave the series in 1985 with his character being killed off onscreen.
Read more » Fondly remembered for her role as one of television's most beloved "good girls," Pamela Ewing, on the long-running primetime soap, "Dallas" (CBS, 1978-1991) actress Victoria Principal was a petite, wide-eyed leading actress of TV, whose luxuriant reddish-brown hair, angular, sculpted features and olive complexion give her a certain exotic look.