The Mummy of Doom was the disguise of Takelot.
Physical appearance[]
It's a mummy wrapped in yellow bandages, it also has hollowed eyes and crooked teeth.
Personality[]
He was greedy and desperate, as he would stop at nothing to get his hands on the Amulet of Giza.
History[]
Scooby-Doo! World of Mystery[]
He scared off Mr. Ramesses and other people when they discovered treasure and stole it all, because he was desperate for trying to find the Amulet of Giza.
Later, he made a surprise attack on the gang when they discovered the Amulet outside of the pyramid and chased them into it, but eventually lost them.
He ended up finding them again when they found the hidden treasures that were stolen, and went running towards them for the Amulet. It got tossed over to Scooby, which he attempted to grab from him, but ended up tripping in the process. His face was then unraveled revealing it to be Takelot. Who was later arrested for theft.