Queen was a mystery writer who assisted his father, a detective with the New York Police Department, in solving murders. Sgt. Velie was Inspector Queen's assistant and Simon Brimmer a rival detective. Queen's methods were arcane and intellectual rather than action oriented, and he always astounded his father by arriving at a correct solution by purely deductive reasoning.
Jim Hutton - Ellery Queen
David Wayne - Inspector Richard Queen
Tom Reese - Sergeant Velie
John Hillerman - Simon Brimmer
Ken Swofford - Frank Flannigan