David James Elliott is a Canadian actor best known for his role as Harmonic "Harm" Rabb Jr. in the television series JAG, which aired from 1995 to 2005. Born on September 21, 1960, in Toronto, Ontario, he has appeared in various films and television shows throughout his career, showcasing his versatility as an actor. In addition to his work on JAG, Elliott has starred in other series such as The Untouchables and Scorpion. He has also lent his voice to animated projects and participated in theater productions, demonstrating his wide-ranging talent in the entertainment industry.