Will Louis Jr. est né le 14 août 1896 à Philadelphie, Pennsylvanie, États-Unis. Il était acteur. Il est connu pour The Parson's Horse Race (1915). Il est mort le 19 mars 1974 en Californie, États-Unis.
His father was Will Louis, so he was known as Will Louis Jr. However, whereas his father spelled his middle name "Louis", Will Jr. seems to have preferred "Lewis" as clearly printed and signed on his WWII Draft Registration Card.