Roselyn Karpowski
Vital Statistics
Title	Detective
Gender	Female
Status	Alive
Occupation	Police Officer
Character Information
Appearances	"The Double Down" and "When the Bough Breaks"
Portrayed by	Diana Maria Riva

Roselyn Karpowski is a detective with the New York Police Department who appeared in Season 2 of Castle, in the episodes "The Double Down" and "When the Bough Breaks".

In the episode, "Secret Santa", Karpowski took over (off camera) the shift that Beckett volunteer for allowing her to go to Castle's for Christmas.