An Italian-American agent added to Ness's team after witnessing a gangland murder. He serves as Ness's right-hand man, with the show later emphasizing his law-enforcement role to counter negative stereotypes of Italian Americans.
Rossi serves as Ness's trusted field agent and undercover specialist.
Rossi's covert operations disrupt Nitti's supply chains and enforcer networks.
Nitti views Rossi as a critical threat, deploying hitmen to neutralize his operations.
Both agents maintain a cooperative professional relationship to support Ness's broader campaign.
Rossi's undercover presence directly challenges Raeder's operational security.
Ness's leadership shapes Rossi's development into a critical undercover asset.
Rossi's field intelligence directly feeds Asbury's prosecutorial strategy.
Rossi's undercover work regularly brings him into direct conflict with Hood's street-level enforcers.
Explore the full interactive character relationship map of The Untouchables