William Conrad Frank Cannon Actor Anthony Zerbe Morris W. Talbot Guest Star Dana Wynter Dr. Dierdre Pace Guest Star William Sargent Lt. Barry Driscoll Guest Star Jack Riley Programmer Guest Star Jay W. MacIntosh Mrs. Talbot Guest Star Kate Hawley Betty Guest Star Florida Friebus Julie McElroy Guest Star Geoffrey Scott .Doorman Guest Star Matt Pelto Specialist Guest Star Patrick Culliton First Policeman Guest Star