Paul Pape ( born July 17 , 1952 ) is an American actor and voice actor known for the role of '' Double J '' in the 1977 film '' Saturday Night Fever '' .
Paul Pape ( born July 17 , 1952 ) is an American actor and voice actor . 
 He has appeared in over 20 films since 1977 , most notably in the role of Double J in the 1977 film '' Saturday Night Fever '' .