arian . ▁ ▁L inda ▁Card ell ini ▁as ▁He ather , ▁an ▁ins ane ▁girl ▁conf ined ▁in ▁D ement ed ▁Hills ▁who ▁has ▁a ▁cr ush ▁on ▁Ed . ▁ ▁Sh aqu ille ▁O ' Ne al ▁as ▁Him self ▁ ▁George ▁Cl inton ▁as ▁Dan cing ▁Cra zy , ▁a ▁D ement ed ▁Hills ▁patient . ▁ ▁Robert ▁Wu hl ▁as ▁an ▁angry ▁customer . ▁ ▁Car men ▁Elect ra ▁as ▁Ro x anne , ▁a ▁hen ch w oman ▁of ▁Kurt ▁who ▁tries , ▁but ▁fails , ▁to ▁s edu ce ▁Ed ▁into ▁telling ▁his ▁secret ▁sau ce ▁reci pe . ▁ ▁Mar ques ▁Houston ▁as ▁J ake , ▁D ex ter ' s ▁high ▁school ▁friend . ▁ ▁J . ▁August ▁Rich ards ▁as ▁Griff in , ▁one ▁of ▁Kurt ' s ▁hen ch men . ▁ ▁Hamilton ▁Von ▁W att s ▁as ▁T roy , ▁Kurt ' s ▁other ▁hen ch man . ▁ ▁Wend y ▁Wor thing ton ▁as ▁the ▁D ement ed ▁Hills ▁nur se . ▁ ▁F loyd ▁Lev ine ▁as ▁an ▁ice ▁cre am ▁man . ▁ ▁Master ▁P ▁as ▁Him self ▁ ▁Sil kk ▁the ▁Sho cker ▁as ▁Him self ▁ ▁C - M ur der ▁as ▁Him self ▁ ▁Production ▁Most ▁of ▁the ▁film ' s ▁scenes ▁were ▁fil med ▁along ▁Gl end ora ▁Avenue ▁in ▁West ▁Cov ina , ▁California ▁including ▁at ▁a ▁restaurant ▁currently ▁known ▁as ▁" Peter ' s ▁El ▁Loc o ". ▁Good ▁Bur ger ▁includes ▁a