Marcin Wilczyński (played by Marcin Kwaśny) is a protagonist in Preserve.
A younger tenant navigating daily life in the dilapidated tenement, representing the working-class youth of the Praga district. Hanka B. (played by Sonia Bohosiewicz) is a protagonist in Preserve.
A central female tenant whose personal struggles and resilience anchor the ensemble's portrayal of community life amid urban decay. Grześ (played by Grzegorz Palkowski) appears in Preserve.
A local resident or tradesman connected to the tenement, reflecting the practical and social fabric of Stalowa Street. Mr. Roman (played by Artur Dziurman) appears in Preserve.
An older tenant whose presence highlights the generational history and long-term residency within the deteriorating building. Krysia (played by Violetta Arlak) appears in Preserve.
A tenant contributing to the ensemble's depiction of interpersonal dynamics and everyday resilience in the Praga district. Rysiek (played by Tomasz Karolak) appears in Preserve.
A prominent tenant known for a vibrant personality, embodying the resilient and often humorous spirit of Praga's residents. Marek (played by Mariusz Drężek) appears in Preserve.
A tenant or local worker managing the everyday challenges of living in a declining urban environment. Tadeusz Pakosz (played by Mikołaj Müller) appears in Preserve.
An elderly tenant whose presence underscores the historical layers and community continuity of the Stalowa Street neighborhood.