The Question and Answer section for The Grapes of Wrath is a great resource to ask questions, find answers, and discuss the novel.
I can't go through every single character on this space. In general, they are introduced as largely sympathetic and resilient characters that are taken advantage of by banks and landowners. Steinbeck forms a connection between the reader and these...
When the cops get to the camp, Casy involves himself in the fight to allow Tom to get away and hide.
The boxcar is significant because it provides the family with shelter. Symbolically, the boxcar represents a home.