Date of birth: c. 1946
Gender: Male
Height: 185 cm (6 ft 1 in)
Mass: 101 kg (223 lb)
Race/Nationality: African-American
Occupation: Security Guard

Mark recalls in his ending to "Wild Things" that his old man told him that there wasn't a place left on Earth that wasn't touched by war. Somewhere between the ages of eighteen and twenty-seven, Mark was part of the US invasion force sent into then-South Vietnam to protect it from the north.

At some point afterwards, Mark settled down in the mid-west and had a wife and son by the 1990s. His job by the September of 1998 was as a security guard for a local firm.