(written from a Production point of view)
He is the brother of actor and director Ron Howard, and the son of actor Rance Howard. Clint's career began at the age of one, with a role in The Andy Griffith Show, a television show that starred his brother. He has worked steadily since, with roles in a number of the films his brother directs, and roles in a number of B-movies, as well. In 1989, Howard joined other Trek alumni by acting in the cop-film Tango & Cash. His co-stars from the Trek franchise were Marc Alaimo, Roy Brocksmith, Teri Hatcher, Glenn Morshower, Michael J. Pollard, and Phil Rubenstein.
Along with Majel Barrett, Joseph Ruskin, Jack Donner and Vince Deadrick, he is one of only five actors to appear in both Star Trek: The Original Series and Star Trek: Enterprise. He, Barrett, and Ruskin also appeared in Star Trek: Deep Space Nine. He also appeared on Star Trek: Discovery and is the only performer to date who appeared in both The Original Series and Discovery.
He has also recently appeared in the 2018 film Solo: A Star Wars Story.