I was just watching Lionheart on TV and spotted QTs old biz partner Lawrence “Yuppie Scum” Bender as a heckler in the crowd of one of Leon’s (Van Damme) fights. I had seen this in the theater (before I even knew who Lawrence Bender was) and watched it numerous times over the years on TV and I kept meaning to check if that was actually him. So I just checked IMDB and lo and behold, it is him. Pretty funny cameo. 
yeah I know, is so funny. i also watched it on TV some time ago and was like “wait, is that L.B.??” and checked on imdb.