Blockbuster Employee's Ghost appeared in the Season Sixteen episode, "A Nightmare on Face Time".
Background
The ghost appears to Randy working behind the counter. Due to the stress of owning a failing business and his families lack of interest, the apparition menacingly advises Randy to "do something extreme", in order to save the failing store.
Appearance
He wore a blue Blockbuster uniform similar to Randy Marsh. He also had wrinkles in his face and brown hair.