Chief Deputy Leif Anders, Scott County sheriff's office
Madeline "Maddy" Baxter, longtime employee at McGregor Industries
Benedict, alias of a person involved in the murder
Tom Bennigan, Minnesota Department of Natural Resources conservation officer
Sheriff Russell "Rusty" Benson, Scott County sheriff
Cammy, daywatch guard at McGregor Industries
Tracy Carver, forensics for U.S. Fish & Wildlife in Oregon
Lieutenant Cole, Minnesota Bureau of Criminal Apprehension
Susan Connelly, financial analyst at McGregor industries
Marlin Coots, McGregor Industries night watchman
Gray, hybrid malamute/arctic wolf owned by Sam Rivers
John, alias of a person involved in the murder
Kay Magdalen, Sam Rivers' boss at U.S. Fish & Wildlife in Denver
Jake Massey, a hunter with search hounds
Mac McCollum, colleague of Sam Rivers at U.S. Fish & Wildlife
Carla McGregor, married to Jack McGregor
Jack McGregor, owner, president and CEO of McGregor Industries, a fertilizer company
Angus Moon, dog breeder
Myrtle, secretary to the Scott County sheriff
Fanny Pederson, U.S. Attorney's office
Sam Rivers, special agent, U.S. Fish & Wildlife Service
Carmine Salazar, U.S. Fish and Wildlife accountant living with Sam Rivers' ex-wife
Warren Sap, coroner
Deputy Ole Sorenson, Scott County sheriff's department
Jared Sparks, tennis pro having an affair with Carla McGregor
Angie Sweet, assistant treasurer, McGregor Industries
Diane Talbott, reporter, Vermilion Falls Gazette
Urban, alias of a shadowy woman involved with Jack McGregor's murder
Emma Winetraub, the McGregors' neighbor