Judy Hoffs was played by an actress who would later marry Rodney Peete, while Harry Truman Ioki was played by Dustin Nguyen.  
In one installment, we learn that T. J. pushed his paralyzed friend Jonathan off a bridge to end his suffering.  In another installment, Kenny Weckerley smothers to death in the vents of a drug rehabilitation center.  The first of those installmetnts featured Pauly Shore and Brad Pitt, while the latter featured Christina Applegate.  After the pilot, Jeff Yagher was replaced in the lead role, while halfway through the first season Frederic Forrest was replaced by an actor who would go on to appear as the mysterious Mr. X on The X Files, Steven Williams.  Judy Hoffs was played by an actress who would later marry Rodney Peete, while Harry Truman Ioki was played by Dustin Nguyen.  More memorably, it starred two sons of Dom DeLuise, as well as the brooding Richard Grieco.  FTP, name this TV series which first appeared in 1987, which dealt with a special police squadron that investigated youth crime and which starred a young Johnny Depp.
In one installment, we learn that T. J. pushed his paralyzed friend Jonathan off a bridge to end his suffering.  
21 Jump Street