Foreigner is a mercenary who was married to fellow mercenary Silver Sable. After their divorce, the two continued a semi-serious game of trying to assassinate each other using various means.
Foreigner is adept in multiple martial arts, making a formidable hand-to-hand combatant, even against superhuman opponents such as Spider-Man. He is also highly skilled in the use of firearms and explosives.
Foreigner is also a master of disguise, having posed as various individuals, and is skilled at undercover work and intelligence gathering.