Based on the Danish crime series format inspired by the bestselling works of author Elsebeth Egholm, the 10-episode U.S. version of the show is to premiere March 3.
It follows Catherine Jensen, a recently promoted homicide detective who tracks down serial killers and relentlessly seeks the truth behind the disappearance of her brother. D'Arcy will play Thomas Schaeffer, a forensic psychologist who has a tumultuous relationship with police.
"[Show-runner] Glen Morgan and the incredible team behind the 'Those Who Kill' have crafted a captivating drama that we're thrilled to add to our slate of original scripted series," David McKillop, executive vice president and general manager of A&E Network, said in a statement. "As the story unfolds, these damaged yet good-intentioned characters are brought to life by the talented cast."