Complex sentence: From October 1960 through April 1961, Duff played Willie Dante, owner of the nightclub Dante's Inferno, in the NBC mystery adventure series "Dante", and from September 1966 through January 1969, he portrayed Det.
Split into simpler sentences: From October 1960 through April 1961, Duff played Willie Dante, owner of the nightclub Dante's Inferno, in the NBC mystery adventure series "Dante". From September 1966 through January 1969, he portrayed Det.