Brian Finch

Jake McDorman

Agent Rebecca Harris

Jennifer Carpenter

SAC Nasreen "Naz" Pouran

Mary Elizabeth Mastrantonio

Agent Spellman Boyle

Hill Harper

Casey Rooks

Desmond Harrington

Senator Edward Mora

Bradley Cooper

Dennis Finch

Ron Rifkin

Lucy Church

Christina Vidal

Guest Star

Sipiwe Moyo

Lawrence Drake

Isiah Whitlock Jr.

Aaron Shaw

McCaleb Burnett

Piper Baird

Georgina Haig

Marie Finch

Blair Brown

Guest Star

Michael Shaw

James 'Tech' Padgett

Michael Devine

Guest Star

Tom Degnan

Senator Morra's Aide

Jeffrey Omura

David Englander

Terry Serpico

Guest Star

Analiegh Tipton

Cameron Fish

Patch Darragh

Guest Star

Musto Pelinkovicci

Guest Star

Joe Holt

Quentin Walker

Gbenga Akinnagbe

Guest Star

Rosalie Tenseth

Andre Hannan

Christopher Halladay

Rachel Finch

Megan Guinan

Josh-O-Saurus Josh

Eddie Pepitone

Elo

Susan Kelechi Watson

Eli Whitford

Arjun Gupta

Guest Star

Pascal Yen-Pfister

Jarrod Sands

Colin Salmon

Jessamyn Eubanks

Sarah Wilson

Spike Four

Stephen O'Reilly

Guest Star

Wolé Parks

Guest Star

Gabriel Sloyer

Dr. Howard Gillroy

James Riordan

Luke

Mark Anthony Noonan

Guest Star

Marc Blucas

Guest Star

Matt Walton

Spike One

Edward Chin-Lyn

Nolan Bale

Todd Litzinger

Cameron

Zach Miko

Guest Star

Dashiell Eaves

Guest Star

William Ryall

Guest Star

A.K Sioud

Spike Two

Patrick Cooley

Guest Star

Victor Costa

Guest Star

Caitlin Mehner

Guest Star

Sam Robards

Gerard Turmann

James Lloyd Reynolds

Guest Star

Claire Glassford

Receptionist

Sydney Cole Alexander

Sabrina

Kathleen Hays

Guest Star

Kecia Lewis

Guest Star

Mihran Slougian

Examiner

Michelle Liu Coughlin

10-year-old Brian

Henry Gagliardi

The Scrub Jay

Gian-Murray Gianino

Guest Star

Venida Evans

FBI Agent

Charlie Semine

Guest Star

Paton Ashbrook

Evidence Control Agent

Jeremy Burnett

Guest Star

Dina Drew

Sarah's Husband

Nicholas Verina

Agent Ike

Tate Donovan

Guest Star

Joel Van Liew

Guest Star

Norma Chu

Guest Star

Justin Colon

16-year-old Brian

Tom Malmed

Gerd Rep

Julee Cerda

Guest Star

Walker Hare

Guest Star

Todd A. Horman

Guest Star

Katelyn Pearce

Guest Star

Renée Veronica Freeman

Adam Honeycutt

Daniel Eric Gold

Guest Star

Lipica Shah

Aleksey Basayev

Andrei Alorvski

Teller

Zuleyma Guevara

Trader Buddy

Anthony P. Thomas

Motorman

Charles Anthony Burks

Guest Star

Danny Lee

ava

Michelle Veintimilla

Bank Security Guard

Warren Bub

Cecil

Craig Sweeny

Young Luke

Cole Hagen

Aaron Ayhan

Sophia Skye Valinotti

Gina Diaz

Melissa Joyce