Bosch: Legacy's final season is underway, and the fans are delighted to have Harry Bosch back on television screens. Unfortunately, as it stands, this is Titus Welliver's final solo outing as the seasoned ex-LAPD detective turned private eye. Welliver will be appearing in three episodes of the Ballard spin-off, but the nature of these appearances has now been revealed, and it makes Bosch: Legacy's cancelation even harder to take.