Hamilton Camp Hamilton Camp was an actor who made three guest appearances on " Star Trek " , with his largest role being Leck , whom he played in the episodes and . He also played Vrelk in the fifth season episode for which he filmed his scenes on Tuesday on Paramount Stage 16 . Television work . As an actor , Camp is perhaps best known for his role as Andrew Hummell in the 1968 - 69 television series , " He & She " . His co - stars on this series were fellow " Deep Space Nine " guest actors Kenneth Mars and Alan Oppenheimer . Camp also seemed to take delight in the fact that he was a regular cast member on two of television ' s biggest failures : 1969 ' s " Turn - On " and 1979 ' s " Co - ed Fever " , both of which were pulled entirely after a single episode . The single aired episode for " Co - ed Fever " was directed by Marc Daniels . In the 1980s , Camp became well - versed and highly recognized as a voiceover actor , giving voice to such characters as Greedy and Harmony Smurf on " The Smurfs " ( 1981 - 1990 ) and the feather - brained superhero Gizmoduck ( and his alter ego , Fenton Crackshell ) on Disney ' s " DuckTales " ( 1987 - 1990 ) and " Darkwing Duck " ( 1991 - 1995 ) . Film work . Camp had several feature film appearances to his credit , as well . As a child actor , he had uncredited roles in the 1950 films " The Happy Years " and " Kim " , both of which starred Dean Stockwell ( with the latter featuring Arnold Moss and Michael Ansara ) . He also had an credited role in Robert Wise ' s " Executive Suite " in 1954 . His other early films include 1951 ' s " When I Grow Up " ( with Sherry Jackson ) and 1954 ' s " The Black Shield of Falworth " ( with Leonard Mudie ) . He also did the voice of Merlin from The Sword in the Stone after Karl Swenson died . Throughout his later career , he appeared in such comedy films as the 1976 comedy " Nickelodeon " ( with Brian Keith and Jeffrey Byron ) , the 1978 fantasy comedy " Heaven Can Wait " ( with Keene Curtis ) , the cult 1981 horror picture " Evilspeak " ( starring Clint Howard ) , the 1982 cult comedy " Eating Raoul " ( starring Robert Beltran and also featuring Ed Begley , Jr . ) , 1983 ' s " Under Fire " ( with Joanna Cassidy ) , 1984 ' s " Meatballs Part II " ( with John Larroquette ) , and 1988 ' s " Bird " ( with Tim Russ , Bill Cobbs , and Tony Todd ) . He was also heard as an old sailor in the opening moments of Disney ' s 1989 film , " The Little Mermaid " , which also featured the voices of Kenneth Mars , Gerrit Graham , and Camp ' s " DS9 " castmate , Rene Auberjonois . In 1990 , Camp was one of many " Star Trek " alumni to appear in the popular detective film " Dick Tracy " . Also on board were Paul Sorvino , Seymour Cassel , John Schuck , Robert Costanzo , Bert Remsen , Michael J . Pollard , Ian Wolfe , and Colm Meaney . The following year , Camp and his fellow DS9 co - star , Armin Shimerman , starred together in the science fiction film " Arena " . Marc Alaimo also starred in this film . Folk singing career . Outside of acting , Camp was well - known as a folk singer . As Bob Camp , he was part of a duo , along with Bob Gibson , during the late ' 50s and early ' 60s . Later , he branched out into a successful solo career , during which he began using the name Hamilton . Despite the decision to become a full - time actor , Camp still occasionally returned to music , recording one album in 1999 and another which was released on 8 November 2005 . Death . Camp died of a heart attack in Los Angeles , California , just a month before his last album ' s release . He was 70 years old .