Franc Luz Franc Luz is the American actor who played the male host of the Trill symbiont named Odan in the fourth season episode in . He was the first actor to portray a member of the Trill species on " Star Trek " . He filmed his scenes for this episode between Tuesday and Tuesday on Paramount Stage 8 and 9 . Luz was born in Cambridge , Massachusetts . He performed in various stage productions during the 1970s , and made his film acting debut in the 1979 drama " Voices " , which also marked the film debut of fellow TNG guest star Thelma Lee . After completing work on this film , Luz made his Broadway debut in the 1979 revival of the musical play " Whoopee ! " Luz then won the role of Dr . John Bennett on NBC ' s daytime drama series " The Doctors " . He starred in this series for two seasons , from 1979 through 1981 , and received a nomination from the Daytime Emmy Awards as Outstanding Actor in a Daytime Drama Series for his performance . After leaving " The Doctors " , Luz returned to performing in theater . He starred as crazed and abusive dentist Orin Scrivello in an early 1980s production of the musical " Little Shop of Horrors " , for which he was nominated for a 1983 Drama Desk Award as Outstanding Featured Actor in a Musical . He returned to film in 1984 , co - starring with guest actress Julie Newmar in the independent drama " Love Scenes " . He also returned to television , making guest - appearances on two hit NBC series : the Robert Butler - created " Remington Steele " and action drama " The A - Team " , starring Dwight Schultz . In 1985 and 1986 , Luz starred in two short - lived CBS series , " Hometown " and " Kay O ' Brien " ; the latter series co - starred Keone Young . Also in 1986 , Luz appeared in the CBS TV movie " Classified Love " , along with Michael McKean . Luz followed these projects with guest spots on NBC ' s " Hunter " ( with Bruce Davison and Leslie Hope ) and " The Facts of Life " . He also co - starred with Robert Lansing in the horror film " The Nest " and starred opposite Jimmie F . Skaggs in the horror western " Ghost Town " , both released in 1988 . The following year , Luz made guest appearances on such shows as " Beauty and the Beast " ( starring Ron Perlman ) and had a supporting role in the hit comedy film " When Harry Met Sally . . . " During the 1989 - 90 television season , Luz starred in the ABC comedy series " Free Spirit " . He then guest - starred on " L . A . Law " , working with fellow " Star Trek " alumni Corbin Bernsen , Larry Drake , Stanley Kamel , Diana Muldaur , Warren Munson , and Lorinne Vozoff . He then appeared on Anthony Zerbe ' s series " The Young Riders " in a two - parter co - starring David Soul . In 1991 , following his appearance on TNG , Luz had a recurring role on the NBC series " Sisters " . He then guest - starred in two episodes of " Matlock " – one with Robin Christopher and another directed by Leo Penn and co - starring Nick Tate . He has since guest - starred on such television shows as " Walker , Texas Ranger " ( starring Noble Willingham ) , " JAG " ( with Kevin Conway and David Sage ) , and " Baywatch " . He was also briefly a regular on the ABC soap opera " All My Children " in 1993 . Luz can also be seen in the 1995 film " Don Juan DeMarco " , along with Tommy " Tiny " Lister , Jr . . His most recent films were " The Pornographer " , starring Craig Wasson , and " Restraining Order " , co - starring Dean Stockwell . Both of these films were released in 1999 . After the latter project , Luz retired from acting and became involved in many New York area museums and exhibition halls as a trustee and a tour guide .