Nothing is known about Sheppard's life prior to or as the outbreak began. He may have lived near or in Savannah, Georgia.
It is known he is a resident in Crawford, his name was written in a locker.
His whereabouts are currently unknown.
This list shows the victims Sheppard has killed:
- Possibly numerous counts of zombies
- "Around Every Corner" (Mentioned)
- Sheppard's name is possibly based on one of Telltale's former environmental artist, Mark Sheppard.