• Pengguna Brainly
Instead of 2, I'll try to give all. 
Richard Knight - main character
Pa - Richard's dad (I actually forgot if his dad'd name mentioned in the novel)
Gus - Richard's older brother 
Angie - Richard's older sister.
Joyce Kilmer - a famous poet. 
Hannah Schemer - Richard's classmate. She is an American German 
I hope this is useful for  you! :>