Karl Malden Det. Lt. Mike Stone Actor Michael Douglas Inspector Steve Keller Actor Barry Sullivan Chris 'Ace' Bane Guest Star Geoffrey Deuel Greg Bane , Peter Anthony Guest Star Greg Mullavey Roger Guest Star Richard Bull Harry, Coroner Guest Star David McLean Harbor Master Guest Star Anna Lee Mrs. Claridge Guest Star Thomas Kirk Roland Claridge Guest Star Alan Caillou Man at Marina Guest Star Joe Miksak Mr. Martin - Telegraph Editor Guest Star Terrence O'Connor Maggie Ames Guest Star Chris Beaumont Copy Boy Guest Star Quinn Martin Executive Producer