Colenback, who starred as Dr. Dan Stewart on the CBS soap opera As the World Turns from 1966-73 and again from 1976-79, died May 12 in West Hollywood of complications from the pulmonary disease COPD.
On As the World Turns, Dan was involved in two of the show's most memorable love quandrangles, the Paul/Liz/Dan/Susan story of the late 1960s/early 1970s and the John/Kim/Dan/Susan story of the mid-1970s. Dan sired two daughters, Betsy and Emily, both of whom named their children after him. Dan died of a terminal illness in September 1979.
A native of Toledo, Ohio, who attended Dartmouth College, Colenback was acting in summer stock at the Bucks County Playhouse in New Hope, Pa., when he was discovered by an agent.
He was brought to New York and made his Broadway debut in 1961 as the attendant to Spanish ambassador Signor Chapuys in the original Broadway production of "A Man for All Seasons."