Rin Tin Tin was a canine actor, whose career began in 1923.

A TV series named after the lead actor which was played by a canine, he was a police canine.

Rin Tin Tin was the first major star of the Warner Brothers Studios after their founding in Hollywood, California in 1923 by four brothers, Jack, Sam, Harold and Albert Warner. The canine actor is credited with saving the studio from bankruptcy. Rin Tin Tin made 26 films for warner Brothers starting in 1923 with Man From Hell's River.