Detective Paul O'Rourke

Detective Paul O'Rourke is one of the investigators drawn into the murder at the center of The Undoing, arriving in the polished world of a wealthy Manhattan family with the flat, unimpressed patience of someone who has interviewed plenty of grieving people before deciding who to believe. He asks quiet questions and watches faces more than he listens to answers.

The show surrounds its glossy, wounded principals with procedural voices who refuse to be charmed, and O'Rourke is one of the steadying counterweights to all that wealth and denial. Michael Devine plays him with unhurried, working-class directness, so every scene he's in quietly punctures the family's performance of innocence.