Munro's first films include starring roles in two Moment of Truth movies: Stand Against Fear, as a high-school jock who uses his popularity for all the wrong reasons, and Abduction of Innocence, as the boyfriend-turned-kidnapper of a teenage lumber heiress. In 1999, Munro played the recurring role of Jack Sheridan during the second season of Charmed. He has also appeared on Without a Trace, CSI: Crime Scene Investigation, CSI: Miami and CSI: NY playing three different characters. He appeared as Peter Musevini, a time traveling patriarch of a genetically-enhanced Nietzschean race, in "Pride Before the Fall", the 100th episode of Andromeda.