I always do a character study for any characters that I'm playing. It helps me to get into part if I'm clear on the background for the character, and the times that I've taken time to do this I've generally felt better about my performances than when I've spent scant time concentrating on developing a history for my character, or done the work then just put it aside. I've started from the information about the character in the script, then filled in the blanks.
A synopsis of the play is here
( First person character study )
A synopsis of the play is here
( First person character study )