Or the "Chuck" of Happy Days.
Your right Chuck was only in the first episode and never to be seen again LOL
“Or the “Chuck” of Happy Days.”
Chucks. There were two of them after all:
http://www.imdb.com/name/nm0641398/
http://www.imdb.com/name/nm0731505/
Oh, I forgot Ric Carrott played Chuck in the 1972 Love, American Style episode that was something of a pilot episode for Happy Days: http://www.imdb.com/name/nm0141057/
http://www.imdb.com/title/tt0637037/?ref_=nm_flmg_act_28