(written from a Production point of view)
Gerrit Graham (born 27 November 1949; age 72) is the actor who first portrayed a Hunter in the Star Trek: Deep Space Nine first season episode "Captive Pursuit" and later the Q Quinn in the Star Trek: Voyager second season episode "Death Wish". Graham auditioned for the role of Odo, ending up competing with Rene Auberjonois and Andrew Robinson for the role. 
Outside of Star Trek, he appeared on Babylon 5, with various Trek guest stars, such as Andreas Katsulas, Patricia Tallman and David Warner, and Child's Play 2, with the voice of Brad Dourif as Chucky. He played the recurring role of Fred Hughes in the twelfth season of the soap opera Dallas (1988-1989, with Joshua Harris, William Smithers, Beth Toussaint, Sherman Howard, Cliff Potts and Ken Jenkins).
Graham contributed additional story material for the 1988 Disney animated film Oliver & Company (for which Frank Welker and Judi Durand provided voices). He provided additional dialogue and voices for the 1989 Disney classic The Little Mermaid (featuring the voices of Star Trek alumni Rene Auberjonois, Kenneth Mars, Hamilton Camp and the aforementioned Frank Welker). He also co-starred with Auberjonois in the 1987 film Walker.