Det. Leander Sydnor

Sydnor is one of the younger detectives pulled onto the major crimes detail, still finding his footing among veterans like Freamon and Greggs. He is diligent and eager to learn the tedious mechanics of real police work—wiretaps, paperwork, patience—rather than chase the glory of a bust.

The show rewards him by treating competence as its own quiet drama: watching Sydnor absorb Freamon's methods and grow sharper case by case is one of the series' understated pleasures. Robinson plays him without flash, all attentive stillness, so his gradual command of the work feels earned rather than announced.