Luisi is perhaps best known for his role as Lt. Doug Chapman, the apoplectic foil to detective Jim Rockford, in a total of 23 episodes during Seasons 3 through 6 of the television series The Rockford Files.
Luisi is well-known for his portrayal of Lt. Doug Chapman, who serves as the irascible antagonist to detective Jim Rockford, appearing in a total of 23 episodes across Seasons 3 through 6 of The Rockford Files.