La legge della camorra (1973) as Mike Artusi. Jeff reportedly has a featured "e con" credit, but the copy I watched was missing both opening and closing actor credits.This would appear to have been Jeff's final film appearance. His sudden disappearance from the screen is a mystery waiting to be solved, he would have appeared to be a natural to segue into the police film fad which followed spaghetti westerns, but it wasn't to be. It seems rather strange that he would retire just when his career appears to have been going very well, unless there was some medical reason or scandal.
First found role for Cameron, surprising no one has seen him before in I criminali della galassia (1965) as Astronaut. He features quite prominently in the closing fight/escape sequence, but never keeps still for a second, hence the blurry shots.