Should have been Cheetah on original Wonder Woman
In the original WW comic books, Cheetah is introduced as an insecure blonde heiress named Priscilla Rich so envious of Wonder Woman at an event she develops a criminal split personality. MF is within a year or two of Lynda Carter age-wise. Imagine her in a spotted Cheetah costume at the age of 26 or 27!
The only other characters they took from the comics were her mother Hippolyte, Baroness Paula Von Gunther (a villain who later reformed and became an ally), and Etta Candy. Only Hippolyte was done much justice on the show compared to the comics.