Jack Davis's acting talents were showcased on the big screen many times throughout the course of his Hollywood career. Davis began his career with roles in the William Gargan crime picture "Night Editor" (1946) and "The Big Doll House" (1971). He then acted in the action picture "Endgame" (1985) with Al Cliver, "The Blue Lightning" (CBS, 1985-86) and "Harold Lloyd: The Third Genius" (PBS, 1989-1990). Davis was most recently credited in "Person of Interest" (CBS, 2011-16). Davis passed away in November 1992 at the age of 78.