(written from a Production point of view)
Ronald W. Smith (born c. 1930) (died 26 June 1995)  was a hairdresser who worked on the early seasons of Star Trek: Deep Space Nine. After his death, the season four premiere "The Way of the Warrior" was dedicated to his memory. (Star Trek: Deep Space Nine Companion. p. 260)
Smith was discovered by Duke Ellington and would work for other stars like Nat King Cole, Ike and Tina Turner, Marvin Gaye, Count Basie and Sugar Ray Robinson. 
Before Star Trek, Smith was a hair stylist on the long-running CBS mystery series Murder, She Wrote. He received his first Emmy nomination for his work on an episode of this series entitled "When the Fat Lady Sings", which guest-starred Theodore Bikel. In addition, he worked on such TV movies as Attica (starring Henry Darrow and Anthony Zerbe) and Carly's Web (starring Daphne Ashbrook, K Callan, Gregory Itzin, and Cyril O'Reilly).
Smith was also a hair stylist on the popular 1980 film The Blues Brothers (featuring Henry Gibson and Charles Napier). He later worked on two films that were directed and written by and starring Robert Townsend. The first was the 1991 musical drama The Five Heartbeats. This was followed by The Meteor Man in 1993, a science fiction comedy which co-starred Frank Gorshin, Tommy "Tiny" Lister, Jr., and Wallace Shawn and featured cinematography by John A. Alonzo. Both of these films featured appearances by Deborah Lacey.