Two alternating agentive nominals in Persian are distinguished by two different agentive, derivational suffixes/forms, i.e. the simple derived de-verbal nouns and synthetic compounds formed with the suffix -ande, as in gu-y-ande “reporter/speaker,” xân-ande “singer,” pâk-kon-ande “cleaner” versus the zero-derived synthetic compounds as in soxan-gu-Ø “speaker,” “âvâz-xân-Ø “song-singer,” barf-pâk-kon-Ø “windshield wiper.” It is discussed that the alternation, and lack of alternation, between the two is totally predictable and productive. While the simple derived and synthetic nominals with -ande are eventive, denoting an underlying action performed by an agent external argument, their equivalent alternating synthetic compounds with the zero-suffix are non-eventive, denoting a result nominal with an instrumental or agentive denotation. The analysis is cast in the framework of Distributed Morphology.