Real name: Frank Schilchting

Occupation: Professional criminal and assassin

Identity: Secret

Legal status: Citizen of the United States with a criminal record

Place of birth: Racine, Wisconsin

Marital status: Divorced

Known relatives: None

Group affiliation: Former partner of Sabretooth, one-time employee of the corperation, Justin Hammer, Stewart Montenegro, and the second viper

Base of operation: Mobile

First appearance: INCREDIBLE HULK #212

Height: 5' 11''

Weight: 190 lbs

Eyes: Blue-grey

Hair: Black