However, his peaceful retirement was frequently interrupted since he was called in as a consultant on tough cases by his old partner, Adam Sully (James Naughton), along with medical examiner, John Chapman (Robert Stanton) .
Bill Cosby | The Cosby Show | Unsolved Mysteries | The Roman Mysteries | The Bill Cosby Show | Cosby | The Mysteries of Pittsburgh | The Inspector Lynley Mysteries | A to Z Mysteries | The Southern Vampire Mysteries | The Hardy Boys/Nancy Drew Mysteries | Roman Mysteries (TV series) | Roman Mysteries | Murdoch Mysteries | Moville Mysteries | Eleusinian Mysteries | Trimalchio's Feast and other mini-mysteries | The Mysteries of Udolpho | The Cosby Mysteries | Miss Fisher's Murder Mysteries | Greco-Roman mysteries | Bill Cosby: Himself | Andrew Cosby | W.R.: Mysteries of the Organism | The New Bill Cosby Show | ''The Nancy Drew Mysteries'' | The Mysteries (play) | The Mysteries of Pittsburgh (film) | The Mysteries | The Mrs Bradley Mysteries |
His work in primetime series have included The Cosby Mysteries, New York Undercover, NYPD Blue, Touched by an Angel, The West Wing, Third Watch, Law & Order: Special Victims Unit, and five episodes of Law & Order (which coincidentally stars Lackawanna Blues star S. Epatha Merkerson), among others.
His post-Levinson TV work includes The Cosby Mysteries (1994–95), starring Bill Cosby, and the short-lived science fiction/detective series Probe, created with Isaac Asimov.