From 1935 to 1948, 66 American Western films were produced featuring the character Hopalong Cassidy, played in all the films by actor William Boyd. The films were at the time collectively known as "Hoppies". In the films, Hopalong, or "Hoppy", and his white horse, Topper, travel through the Old West while dispensing justice, usually with two companions: one young and trouble-prone with a weakness for damsels in distress, the other older, comically awkward and outspoken.