TV commercial for Chevrolet's 1964 lineup of cars, shot especially for his father, Dan Blocker's series, "Bonanza" (1959). Dirk Blocker appears as himself. It also features his siblings and father and the rest of the series' cast.
5' 9" (1.75 m)
Did You Know?
The youngest of four children, Dirk has twin sisters, Debra Lee and Danna Lynn, four years older, and a brother, producer David Blocker
, who is two years older. Dirk's birth name, Dennis, was given to him in honor of his father's best friend since college, Dennis Reed, a high school drama teacher in San Gabriel, California.