Principal Deedle

The Dark Specter is the main antagonist of the 2009 movie Scooby-Doo! The Mystery Begins. He was the disguise of Principal Deedle.

Physical Appearance
His costume was a black ghost cloak.

Role in The Mystery Begins
Deedle used the disguise to scare his students away while he searched for a rare stamp buried below his school. However Fred Jones, Daphne Blake, Velma Dinkley and Shaggy Rogers were blamed for his plans and kicked out of Coolsville High. With the help of Scooby-Doo They later returned, cleared their names, captured Deedle and foiled his evil plan.