Leslie J. Clark is a character in the 1945 Donald Duck cartoon Duck Pimples. He is a hot iron salesman, who offered hot irons to Paddy the Cop to torture Donald.
He later appeared as E-Z Smith in the Quack Pack episode; "Can't Take a Yolk", where he sells his retro-growth formula to Huey, Dewey and Louie as an easy way for the tree to shrink.
In DTV Monster Hits, an original animation had him make a cameo, along with Dopey Davis and Colleen, talking to Witch Hazel before Dreamland started.
Leslie J. Clark as seen in DTV Monster Hits