I guess you should approach the roles differently when they're actual people who have been, this is the difference. Getting the accent exact, or the hair exact is less important in a situation like this.
-- Mary Stuart Masterson
   
Mary Stuart Masterson   Name:
Mary Stuart Masterson
Type:
Actress
Nationality:
American
Birth:
June 28, 1966
https://www.nutquote.com/quote/Mary_Stuart_Masterson