If you remember the first couple of episodes, Happy Days featured Gavin O'Herlihy as Richie Cunningham's brother "Chuck." He's pictured below in a still from "Death Wish 3."

They got another actor to play chuck and eventually dumped the character altogether.
"Death Wish 3" is a "good/bad" flick...Bronson was already slowing down and so was his good-guy co-star Martin Balsam. But Chuck?
Fan-CHUCKIN'-tastic!
The movie features classic 1985 "boom-chucka-boom-chucka-boom" wah-wah exploitation music by Jimmy Page (!). I highly recommend it if you like bad movies on a Saturday night.
