Rhett is absolutely NOT an ENFP. Or ENTP, though that's less ridiculous than ENFP. What the hell? The guy's a directive, practical, in-charge scumbag. He's either ENTJ (1st choice) or ESTP (2nd choice.)
Scarlett is most likely an ESTP.
Ashley is a candy ass INFJ.
And Melanie is an insufferable Yamato Nadeshiko ISFJ