Acclaimed for her work on stage and screen, Marin Ireland is a beloved actress known for her role as Sissy Cooper in “The Umbrella Academy” (2020–2022). Her television career began with her guest starring on “Law & Order: Criminal Intent” (2003–2006) before other roles in shows such as “Mildred Pierce” (2011), “Homeland” (2011–2012), and “Girls” (2015). She had main roles in the shows “Sneaky Pete” (2015–2019) and “Y: The Last Man” (2021), and “The Devil in Disguise: John Wayne Gacy” (2025). She has starred in movies such as “Side Effects” (2013), “Glass Chin” (2014), “Hell or High Water” (2016), “The Miseducation of Cameron Post” (2018), “The Irishman” (2019), and “Materialists” (2025).