Green Ghosts (A Night of Fright is No Delight)

The Phantom Shadows were the disguises used by Cosgoode Creeps and Mr. Crawls.

Physical appearance
When dressed as the Phantom Shadows, Creeps and Crawls wore what appeared to be green robes with hoods over their heads shadowing their faces, matching their ghoulish green skin. In actuality, they simply put green sheets over their heads and painted their skin to match.

Season one
The two lawyers wanted the estate of Colonel Beauregard Sanders's will, but had to get the inheriters, including the colonel's relatives and Scooby-Doo, out the mansion so they could have the fortune to themselves.

When Scooby and the other heirs arrived to be read the late Col. Sanders's will, it turned out that they would all have to spend the night at his mansion in order to collect their inheritance. Creeps and Crawls then donned their costumes and proceeded to kidnap the heirs so they could keep all of the fortune for themelves.

The plan went aray when they went after Scooby. Although Fred Jones' first trap failed to work, they were soon captured and unmasked. The fortune, however, turned out to be fake as well.

Appearances

 * Scooby-Doo, Where Are You!
 * A Night of Fright is No Delight

Scooby-Doo 2: Monsters Unleashed
A phantom shadow was on a banner above the entrance to the Coolsonian Criminology Museum and later, a costume was display inside.

Scooby-Doo! Night of 100 Frights
It appeared as the boss villain of the Hedge Maze. He was holding Daphne Blake captive and given the name "Green Ghost".

Although the Green Ghost is based on the Phantom Shadow from the above episode, the game says it comes from the A Pup Named Scooby-Doo episode A Bicycle Built For Boo!, which is incorrect not only because it's the wrong episode, but the monster from the latter didn't even have a proper name and was only referred to as a 'ghost', anything else was a description.

Scooby-Doo! Mystery Incorporated
The costume is on display at the Dinkley's Spook Museum in Crystal Cove. (Beware The Beast From Below, Where Walks Aphrodite)

Notes/trivia

 * The Phantom Shadow(s) is its proper name and used several times, other 'names' such as "green ghosts" (first used by Shaggy Rogers) and "giggling green ghosts" (first used by Fred) were only descriptions.
 * The Phantom Shadow looks similar to a green version of the Phantom of Vasquez Castle.