Don't know about actors with mafiosi fathers, there are also cases in which the actors were gangsters themselves:
Louis Eppolito who appeared in "Goodfellas" was a hitman. There is also the Italian actor Giovanni Venosa from the film "Gomorra" who was arrested for being the acting boss for his uncle Luigi Venosa. Another example is the Russian gangster Vladimir Kumarin who played the French king Louis XIV in some movie (don't remember the title).
Willie Marfeo to Henry Tameleo:
1) "You people want a loaf of bread and you throw the crumbs back. Well, fuck you. I ain't closing down."
2) "Get out of here, old man. Go tell Raymond to go shit in his hat. We're not giving you anything."
| 
