Miles O'Brien
В роли: Self - Narrator (голос)

William B. Evans
В роли: Self - Boston Police Department

Kevin Tucker
В роли: Self - FLIR Systems, Inc.

Marios Savvides
В роли: Self - Carnegie Mellon University

Van Romero
В роли: Self - New Mexico Institute of Mining and Technology

Maria Cramer
В роли: Self - The Boston Globe

Hadley Solomon
В роли: Self - Watertown Resident

Michael Hargather
В роли: Self - New Mexico Institute of Mining and Technology

Michael J. Stanley
В роли: Self - New Mexico Institute of Mining and Technology

Edward F. Davis
В роли: Self - Boston Police Department

Raymond W. Kelly
В роли: Self - New York City Police Department (как Raymond Kelly)

Jessica Tisch
В роли: Self - New York City Police Department

Timothy P. Alben
В роли: Self - Massachusetts State Police

Kenneth Mekeel
В роли: Self - New York City Police Department

Juliette Kayyem
В роли: Self - The Boston Globe

Christopher Peterson
В роли: Self - Center for Civic Media, Massachusetts Institute of Technology

Eric Moskowitz
В роли: Self - The Boston Globe

Brad Berry
В роли: Self - Chester County Pennsylvania, Department of Emergency Services

Rash Mia
В роли: Self - TruePosition

Curtis Hazlett
В роли: Self - Watertown Resident

Jim Seery
В роли: Self - Watertown Resident

Viktor Mayer-Schönberger
В роли: Self - Oxford Internet Institute, University of Oxford

Stephen Flynn
В роли: Self - Northeastern University

James Woznica
В роли: Self - FLIR Systems, Inc.

Edward Mathurin Jr.
В роли: Self - Massachusetts State Police

Mark Spencer
В роли: Self - Massachusetts State Police

Deval Patrick
В роли: Self - Governor, Commonwealth of Massachusetts (хроника)