Cassar is a professor.
Physical appearance[]
Cassar is a tall, adult man with short brown hair and a curved mustache. He wears a dark blue black buttoned jacket over a dark red shirt and orange tie, gray pants and brown shoes.
Personality[]
He's was a bit worried about the weapon wielding Skeleton haunting the Catacombs and had a bit of concern when more people started showing up to explore for a Golden Falcon as seen from a fictional story.
History[]
Scooby-Doo! World of Mystery[]
He called the gang over to help explore the Catacombs as a Phosphorant Skeleton was sited scaring away tourists.
After the gang's first encounter with the Skeleton, Daphne notices a group of tourists arriving to the Catacombs with copies of the "Maltese Mystery" book. She asks Cassar on about it, to which he explains that fans of the book came to the location of the scenes that took place in the story.
He was later surprised to see that the gang came back with the one responsible in scaring people away, that being a guard from the Malta airport. He thought the story was also true and wanted to steal the Golden Hawk for himself, but was dumbfounded when he found out it wasn't real, apologized for his actions and got yelled at to go back to work.
Afterwards, Cassar awarded the gang with lunch at a nearby Cafe.