Sirens

Michael Mosley

Johnny Farrell (23 episodes)

Kevin Daniels

Hank St. Clare (23 episodes)

Kevin Bigley

Brian Czyk (23 episodes)

Jessica McNamee

Theresa Kelly (23 episodes)

Bill Nunn

Cash (21 episodes)

Josh Segarra

Billy Cepeda (18 episodes)

Kelly O'Sullivan

Valentina "Voodoo" Dunacci (14 episodes)

Lenny Clarke

Frank Farrell (6 episodes)

Maura Kidwell

Claire "Stats" Bender (4 episodes)

Jean Smart

Nora Farrell (3 episodes)

Jesse Luken

Nick (3 episodes)

Kirsten Fitzgerald

Kathy "Mac" McMenimen (3 episodes)

Nora Dunn

Bridget (2 episodes)

John Scurti

Jerry (2 episodes)

Loretta Devine

Hank's Mother (2 episodes)

Emily Peterson

Maeve (2 episodes)

Brian Doyle-Murray

Monsignor Sullivan (1 episode)

Jonathan Sadowski

Josh Miller (1 episode)

Geno Walker

Jogger (1 episode)

Tim Baltz

Super-Jim (1 episode)

Aya Cash

Cindy (1 episode)

Matt Kozlowski

Stink Hands (1 episode)

Levenix Riddle

Steve (1 episode)

Matt Lucki

Buddy (1 episode)

Clark Lichty

Hot Fireman (1 episode)

Ira Amyx

Animal Control (1 episode)

Sari Sanchez

Store Manager (1 episode)

Carolyn Molloy

Woman #1 (1 episode)

Sadie Rogers

Woman #2 (1 episode)

Susaan Jamshidi

Shoplifter (1 episode)

Steve Schirripa

Jimmy O'Shea (1 episode)

Andy Kindler

Bobby (1 episode)

Lorenzo Rush Jr.

Big Mike (1 episode)

Donterrio Johnson

Bunny (1 episode)

Richard Gallion

Stryfe (1 episode)

Mark Hood

Derek (1 episode)

Brynden Cleveland

Shawn (kid) (1 episode)

Lili-Anne Brown

Kid's Mom (1 episode)

Michael Kevin Martin

Minister (1 episode)

Griffin Kane

Jack (1 episode)

Mike Mizanin

Lance (1 episode)

Nikki DeLoach

Sheila (1 episode)

Aemilia Scott

Heidi the Midwife (1 episode)

Wayne Knight

Richard (1 episode)

Ashleigh LaThrop

Gabby (1 episode)

Tim Kidwell

Pete (1 episode)

Sawyer Williams

Barfly (1 episode)

Isaiah Mustafa

Danny (1 episode)

Robert Kelly

Soda Bottle Victim (1 episode)

Tim Mason

Pete (1 episode)

Scott Hegland

Matt Damon Guy (1 episode)

Bob Fisher

Executive producer (23 episodes)

Denis Leary

Executive producer (23 episodes)

Bob Fisher

Writer (4 episodes), Teleplay (1 episode)

Denis Leary

Writer (4 episodes), Teleplay (1 episode)

Erik Durbin

Writer (5 episodes)

Annabel Oakes

Writer (3 episodes)

Ken Rogerson

Writer (2 episodes)

Sarah Walker

Writer (2 episodes)

Spencer Sloan

Writer (2 episodes)

Mark Blecha

Writer (1 episode)

Josh Lieb

Writer (1 episode)

Jim Serpico

Writer (1 episode)

Tom Sellitti

Writer (1 episode)

Richie Keen

Director (5 episodes)

Michael Blieden

Director (4 episodes)

John Enbom

Director (2 episodes)

Jay Karas

Director (2 episodes)

Steven K. Tsuchida

Director (2 episodes)

John Fortenberry

Director (2 episodes)

Steve Pink

Director (2 episodes)

Jason Ensler

Director (1 episode)

Bob Fisher

Director (1 episode)

Victor Nelli Jr.

Director (1 episode)