Officer John "Sully" Sullivan

Skipp Sudduth

Doc Parker / Monte Parker

Michael Beach

Officer Ty Davis, Jr.

Coby Bell

Kim Zambrano

Kim Raver

Bobby Caffey

Bobby Cannavale

Det. Faith Yokas

Molly Price

Carlos Nieto

Anthony Ruivivar

Jimmy Doherty

Eddie Cibrian

Officer Maurice "Bosco" Boscorelli

Jason Wiles

Guest Star

Kelly Cole

Guest Star

Matt Ross

Guest Star

James Handy

Guest Star

Ronald Guttman

—

Joe Lisi

Guest Star

Rafael Baez

Guest Star

David Anzuelo

Guest Star

Johnny Cenicola

Guest Star

Danny Mastrogiorgio

Guest Star

Michael Rispoli

Guest Star

Rosie O'Donnell

Guest Star

Tom Gilroy

Guest Star

J.K. Simmons

Guest Star

Eugene Byrd

Guest Star

Will Arnett

Guest Star

Max Ligosh

Guest Star

Nahanni Johnstone

Guest Star

David Vadim

Guest Star

Brian Tarantina

Emily Yokas / —

Bonnie Dennison

Guest Star

Eden Rountree

Guest Star

Sharrieff Pugh

Guest Star

James Hanlon

Guest Star

John Seda

Guest Star

N'Bushe Wright

Guest Star

Wendell Pierce

Guest Star

Damian Young

Maritza Cruz / —

Tia Texada

Guest Star

Gordon Joseph Weiss

Guest Star

Peter Rini

Guest Star

Toni Lewis

Guest Star

Laila Robins

Guest Star

Edmund Wilkinson

Guest Star

Jon Seda

Guest Star

Lonette McKee

—

Bill Walsh

Guest Star

Irma St. Paule

Guest Star

Samantha Buck

Guest Star

Kristopher Scott Fiedel

Guest Star

Bryan Greenberg

Guest Star

Nathalie Paulding

Guest Star

Socorro Santiago

Guest Star

Lisa Vidal

Guest Star

Jade Yorker

Guest Star

Ashley Wolfe

Guest Star

Gano Grills

Alex Taylor / —

Amy Carlson

Guest Star

Ezra Knight

Sasha Monroe / —

Nia Long

Guest Star

Ossie Davis

Guest Star

Ray Aranha

Guest Star

Harry Goz

Fred Yokas / —

Chris Bauer

—

John Bolger

Grace Foster / —

Cara Buono

Brandan Finney

Josh Stewart

—

Savannah Haske

—

Patti D'Arbanville

—

Sakina Jaffrey

—

Charles Haid

—

Manny Perez

—

Brad Beyer

—

Stephen Singer

—

Roy Scheider

—

Tawny Cypress

—

James Rebhorn

John Miller

Aidan Quinn

—

Anson Mount

—

Charlie Day

—

Wyclef Jean

—

Mia Farrow

—

Anne Twomey

—

Tim Kang