There is nothing known about his history.
Throughout From Dusk Till Dawn: The Series
In Let's Get Rambling, he knocks on Freddie's window and asks what he wants, with Freddie letting him know to fill up the car with gas.
Monolo wore a light brown cowboy hat and a white shirt buttoned up, along with pockets and a pen in one of them. He is an elderly man with some wrinkled skin, noticeably in the face and neck. He has light green eyes, short, gray hair and a bushy, gray mustache.
He seemed to display a calm and friendly personality.
- Monolo is a Spanish origin name and means "God is with us". It is a different variation spelling of Manolo.
- In Let's Get Rambling, the sign posted at the gas station reads his name as Manolo while his name is spelled as Monolo in the end credits.