Hayward Seaton Mack (March 20, 1882 – December 24, 1921)[1] was an American actor of the silent era.

Born in Albany, New York, in 1882, Mack appeared in more than 80 films between 1910 and 1921.

Before embarking on an entertainment career Mack was a civil engineer and also worked as a newspaper man.

Mack committed suicide in Los Angeles' Lafayette Park by taking poison.

This article about a United States film actor born in the 1880s is a stub.