OVA
Description
Daisuke Jigen debuted in the second pilot film wearing a dark gray fedora with a black band, a dark gray suit, a light blue shirt, a white tie, and black boots. Later iterations altered this look, changing the hatband to dark gray and his footwear to brown. His broad-brimmed fedora, consistently obscuring his eyes, and his distinct chin curtain beard remained key visual elements across adaptations.

He emerged as a pragmatic marksman possessing exceptional firearms skill, notably achieving a 0.3-second quick draw. His personality balanced cynicism with underlying loyalty, particularly directed toward Lupin III, though early stories showed fluctuating allegiance. A core trait was his deep-seated distrust of Fujiko Mine, seeing her schemes as persistent threats, a dynamic that endured.

His backstory varied across continuities. Early manga depicted him as a New York-born mob enforcer who moved to Japan, adopting the alias "Daisuke Jigen" (次元 meaning "dimension"). Anime expansions layered his history: training under mentors like Joe of Spades and Gallanco, involvement in South American conflicts, and joining Italian organized crime. A pivotal incident saw him acquire his iconic Smith & Wesson Model 19 revolver after taking blame for a mafia boss's death to protect the boss's wife, Cicciolina.

His character evolved from an occasionally backstabbing mercenary in early manga to Lupin's steadfast partner. Spin-offs like *Lupin Zero* reimagined his origins, portraying him as a childhood associate of Lupin III in 1960s Japan, already skilled with firearms and involved in underworld activities during his youth. This retconned earlier American-centric backstories, emphasizing their earlier camaraderie.

Key relationships defined his role. His bond with Lupin III matured into an interdependent partnership, often communicating plans nonverbally. Antagonism toward Fujiko stemmed from her betrayals and manipulation of Lupin. Professional rivalry with Inspector Zenigata was less prominent in pilot media but developed later. Jigen's romantic involvements typically ended tragically, reinforcing his wariness of emotional attachments.

Skills beyond marksmanship included proficiency in operating vehicles (cars, planes, tanks), hand-to-hand combat, and multilingual disguise work. Personal habits featured chain smoking (preferring Pall Mall or Marlboro), alcohol consumption with high tolerance, and interests in spaghetti westerns, boxing, and poker, cementing his "lounge king" persona through adaptations.