Yes they are , Ron is older
from wikipedia. Film. Howard has appeared in many films that were directed by his brother, Ron Howard, often playing unpleasant characters, including a callous morgue attendant in Backdraft, a sour...
Clint Howard is 52 years old (birthdate: April 20, 1959).
Clint Howard was born on April 20, 1959.
They apparently have worked together on several projects so Yes.