Jason Gray-Stanford
as Randall Disher (125 episodes)
Jason Gray-Stanford portrays the character of Randall Disher, a bumbling but well-meaning police detective who works alongside Monk and Stottlemeyer. Disher is known for his naivety and occasional clumsiness, but he is fiercely loyal to his colleagues. Despite his shortcomings, Disher provides comic relief in the show and occasionally stumbles upon important clues.