Who is rin tin tin?

Rin Tin Tin was a German Shepherd dog who became a famous Hollywood star in the 1920s and 1930s. Rescued from a World War I battlefield by an American soldier, he was trained to perform in silent films and gained immense popularity for his roles in adventure and action movies. Rin Tin Tin is credited with helping to shape the portrayal of dogs in cinema and was one of the first animal actors to achieve significant fame. His legacy continues to influence the representation of canine characters in film and television today.