Billy Lee, Double Dragon Wiki

Billy Lee (ビリー・リー, Birī Rī?), originally known in the West by the localized nickname of "Hammer", is one of the two main protagonists of Technōs' Double Dragon series of beat 'em up games. He is the twin brother, training partner and in some occasions even rival of Jimmy Lee. He is a master of Sou-Setsu-Ken, a legendary Chinese martial art which he mastered at a young age. Billy is also the boyfriend of Marian, who is often captured by rival gangs (mainly the Black Warriors) in order to lure him

VGFacts - Double Dragon miscellaneous

Double Dragon V: The Shadow Falls - Wikiwand

marian kelly, billy lee, jimmy lee, and linda (double dragon) drawn by david_liu and donnie_durdunkleton

Master System - Double Dragon - Billy and Jimmy Lee - The Spriters Resource

Jimmy Lee (Character) - Comic Vine

Super Double Dragon - Wikipedia

Character Idea: Billy & Jimmy Lee

Double Dragon Neon - Wikipedia

Double Dragon II: The Revenge Characters - Giant Bomb

marian kelly, billy lee, jimmy lee, and uncle matin (double dragon and 1 more) drawn by david_liu