The ones that needed everything else to be interesting to make up for the leads.
Yes it was an awesome Origin of the Grocer story.
But come on-every movie has supporting characters. You cant say they exist to make up for him not having parental issues. He didnt any back story. He's a stranger in town.
Caligula: Do you think I'm mad?...Sometimes I think that I'm going mad. Do you — be honest with me — has that thought ever crossed your mind?
Claudius: Never. Never. The idea is preposterous. You set the standard of sanity for the whole world.
