Reed Diamond made his professional debut co-starring in the critically acclaimed film Memphis Belle in 1990, establishing the foundation for a long and diverse career across film and television. His early work included notable guest appearances on television shows such as Law & Order and roles in feature films including the thriller Clear and Present Danger in 1994. Diamond gained significant recognition in 1995 when he joined the main cast of Homicide: Life on the Street as Det. Mike Kellerman, a role he portrayed for multiple seasons.
Maintaining a consistent presence on screen, Diamond has recently appeared in critically acclaimed series such as AMC’s Better Call Saul in 2022 and the spin-off Orphan Black: Echoes in 2023. Looking ahead, he is slated to appear in the highly anticipated film Drop, scheduled for release in 2025. His sustained career trajectory highlights his consistent demand and adaptability across a wide array of productions and platforms.