Expansion This needs a stretch. (Feel free to remove when satisfied of completion.)
* Physical appearance; clothing.
* History is missing details before she is caught.
Holly Graham
Holly Graham
Vital Statistics
Species Human
Gender Female
Hair color Black
Eye color Blue
Other Statistics
Family Alexander Graham (uncle)
Production Details
First appearance Scooby-Doo! Night of 100 Frights
Played by Grey DeLisle

Holly Graham is the niece of Professor Alexander Graham, and a former friend of Daphne Blake.

Physical appearance

Holly is a tall, pretty Caucasian female, with black hair and blue eyes.


At first she seemed nice, but when the gang discovered that she was the true Mastermind, her true colors are revealed to be cruel and vicious, as she tried to frame her uncle to get sent to the jail and make a fortune on his invention.


Scooby-Doo! Night of 100 Frights

Holly Graham's costume

Velma reveals the real Mastermind.

Insert details here.



  • At the end of the game, Shaggy Rogers joked that her name, "Holly Graham", obviously sounded like hologram, which is what all the enemies were.
  • Despite his own niece trying to set him up, Prof. Graham seemingly forgives Holly.