Sergeant Bickle is a detective with the Euclid police department. He speaks to Phoebe and Sal about Mrs. Winterbottom’s disappearance, though he doesn’t take the girls seriously. However, he becomes a person of interest to Sal and Phoebe when Sal discovers that his son, Mike, is the supposed “lunatic” whom Phoebe believes kidnapped Mrs. Winterbottom. It turns out that Sergeant Bickle and his wife adopted Mike as a newborn, when Mrs. Winterbottom gave him up for adoption years ago.