Quinlin Dempsey Stiller entered the world July 10 at a healthy 8 pounds, 2 ounces.
Quinlin and his sister, Ella, 3, should have greasepaint flowing through their veins with their acting parents and the comedy team of Anne Meara and Jerry Stiller as grandparents.
Stiller and Taylor shared the big screen in "Dodgeball" and "Zoolander" and married in May 2000.
Humongous iceberg slowly drifts away from Antarctica
Avril Lavigne denies racism in 'Hello Kitty' music video