Name
  
  
Alter Ego
Harleen Frances Quinzel
  
Dr. Nathaniel Essex
  
Alias
Dr. Holly, Batgirl, Doctor Harleen Quinzel & Dr. Jessica
  
Mister Sinister, Dr. Nathaniel Essex, Nathan Milbury, Michael Milbury, Arnold Bocklin
  
Who Played
  
  
In Films
Brandy Whitford, Krista Kangas, Rachel Nicole, Sierra Schepmann, Tara Flynn
  
Not Yet Appeared
  
Family
  
  
Love Interest
No Love Interest
  
Genre
  
  
Identity
Public
  
Secret
  
Alignment
Supervillain
  
Supervillain