|This needs a stretch. (Feel to remove when satisfied of completion.)|
* Physical appearance.
* History is incomplete.
Marlon has light brown hair and is overweight.
Insert details here.
He was jealous of never getting credit, so he created the Gryphon puppet to force the school to be closed so he could open his own show.
- DTV14. Scooby-Doo! Abracadabra-Doo
- The end credits show his name as "Marlon Whirlen" (giving him the same last name as his brother's first name).