Johnson later played other supporting roles in the films "Renegades" (1989), "Final Round" (1993), "Drop Zone" (1994) and several othr lesser film outings, but TV gave him his best roles and greatest visibility. TV-movies have brought him an interesting variety of roles in "Heart and Soul" (1988), "Personals" (1990), and "Model by Day" (1994). In 1993 the critically acclaimed police drama, "Homicide: Life on the Streets", premiered on NBC and cast Johnson as Detective Meldrick Lewis, who has had to cope with unrequited love, the death of a partner and the opening of a bar with one of his colleagues.
Johnson would stay with the series until its end in 1999 and return for a 2000 reunion movie, but the actor cannily used his "Homicide" time to gain a tremendous amount of experience behind the camera as a director. He would helm several episodes of his own series, and go on to direct episodes of other high-profile dramatic and action-oriented television fare, including "NYPD Blue," "La Femme Nikita" "Law & Order: Special Victims Unit," "The West Wing," "Third Watch," "The Wire" and the pilot episode of the critically hailed cop drama "The Shield." His extensive resume--and experience with high-tension crime dramas--made him a natural choice to direct his first feature film, a big-budget, straight-faced adapatation of the '70s crime series "S.W.A.T." (2003) starring Samuel L. Jackson and Colin Farrell.