An instantly recognizable face to daytime television fans, actor Mark Derwin appeared in several soap operas, usually portraying hard-nosed doctors or detectives. Derwin began a long and fruitful soap career with a short run on “The Young and the Restless” (CBS, 1973- ), followed by a more extensive stay on “Guiding Light” (CBS, 1952-2009), where he became a featured cast member. He left soaps for several years in the 1990s for episodic television, but returned with another high-profile role on “One Life to Live” (ABC, 1968- ). The versatile actor also did a fair share of comedy, including a