| Person | Type | Job | Role(s) | Episodes |
|---|---|---|---|---|
 Adam Bernstein | Crew | Directing | Director | 2 |
 Christopher Tyng | Crew | Sound | Music | 13 |
Constantine Makris | Crew | Directing | Director | 3 |
 Denis Leary | Crew | Production | Producer, Teleplay, Writer, Creator | 93 |
 Don Scardino | Crew | Directing | Director | 2 |
 Jace Alexander | Crew | Directing | Director | 19 |
Jefery Levy | Crew | Directing | Director | 2 |
 John Fortenberry | Crew | Directing | Director | 22 |
 John Scurti | Crew | Writing | Story | 1 |
 Ken Girotti | Crew | Directing | Director | 10 |
 Peter Markle | Crew | Directing | Director | 1 |
 Peter Tolan | Crew | Production | Producer, Writer, Teleplay, Director, Creator | 93 |
 Rosemary Rodriguez | Crew | Directing | Director | 3 |
Salvatore Stabile | Crew | Writing | Writer | 2 |
 Stephen Belber | Crew | Writing | Writer | 1 |
Michael Caleo | Crew | Writing | Writer | 1 |
 Adam Ferrara | Cast | Actor | Chief 'Needles' Nelson | 41 |
 Adam LeFevre | Cast | Actor | 1 | |
 Al Sharpton | Cast | Actor | 1 | |
 Alison Bartlett | Cast | Actress | 2 | |
 Andrea Roth | Cast | Actress | Janet Gavin | 93 |
 Anthony Alessandro | Cast | Actor | 2 | |
 Anthony Mangano | Cast | Actor | Bobby | 1 |
 Artie Lange | Cast | Actor | 1 | |
 Boris McGiver | Cast | Actor | 1 | |
 Brian McNamara | Cast | Actor | Passing Fireman | 1 |
 Bruce Altman | Cast | Actor | 1 | |
 Bryan Batt | Cast | Actor | 1 | |
 Callie Thorne | Cast | Actress | Sheila Keefe | 78 |
 Cam Neely | Cast | Actor | Mungo | 1 |
 Charles Durning | Cast | Actor | Michael Gavin | 24 |
 Ching Valdes-Aran | Cast | 3 | ||
 Christopher Durham | Cast | Actor | Father Murphy | 1 |
 Cynthia Harris | Cast | Actress | 2 | |
 Daniel Sunjata | Cast | Actor | Franco Rivera | 93 |
 David Alan Basche | Cast | Actor | 2 | |
 David Vadim | Cast | Actor | 3 | |
 Dean Winters | Cast | Actor | Johnny Gavin | 29 |
 Deanne Bray | Cast | Actress | 1 | |
Denis Leary | Cast | Actor | Tommy Gavin | 93 |
 Derrick Simmons | Cast | Actor | 1 | |
 Diane Farr | Cast | Actress | Laura Miles | 13 |
 Donna Hanover | Cast | Actress | 1 | |
 Gerry Bamman | Cast | Actor | 1 | |
Gordon Ramsey | Cast | 1 | ||
 H. Jon Benjamin | Cast | Actor | Gary | 1 |
 Holter Graham | Cast | Actor | 1 | |
 Idina Menzel | Cast | Actress | 1 | |
 Jack McGee | Cast | Actor | Jerry Reilly | 39 |
 James Badge Dale | Cast | Actor | Timothy Gavin | 3 |
 James Biberi | Cast | Actor | 3 | |
 James Colby | Cast | Actor | Joey the Third | 1 |
 James McCaffrey | Cast | Actor | James 'Jimmy' Keefe | 39 |
 Jay Potter | Cast | Actor | Roger Mills | 1 |
 John Rothman | Cast | Actor | 2 | |
 John Salley | Cast | Actor | 1 | |
John Scurti | Cast | Actor | Kenneth 'Lou' Shea | 93 |
John Sica | Cast | 1 | ||
 John Speredakos | Cast | Actor | Jewish Cop | 2 |
 Jordan Lage | Cast | Actor | 1 | |
 Judy Del Giudice | Cast | Actress | 1 | |
 Julie White | Cast | Actress | Dr. Goldberg | 1 |
 Kaitlin Hopkins | Cast | Actress | 1 | |
 Karen Goberman | Cast | Actress | 5 | |
 Kate Burton | Cast | Actress | 8 | |
Kevin Hagan | Cast | Actor | Captain Sweeney | 1 |
 Larenz Tate | Cast | Actor | Bart 'Black Shawn' Johnston | 19 |
 Lee Tergesen | Cast | Actor | 3 | |
 Lenny Clarke | Cast | Actor | Uncle Teddy | 24 |
Lyndon Byers | Cast | Ryan | 3 | |
 Maddie Corman | Cast | Actress | 1 | |
 Manny Pérez | Cast | Actor | 2 | |
 Marisa Tomei | Cast | Actress | Angie | 4 |
 Matt Mulhern | Cast | Actor | 3 | |
 Matthew Arkin | Cast | Actor | Dr. Thompkins | 2 |
 Michael Mulheren | Cast | Actor | Chief Perolli | 1 |
 Neal Jones | Cast | Actor | 8 | |
 Nick Di Paolo | Cast | Actor | 1 | |
 Noelle Beck | Cast | Actress | Mariel | 4 |
 Paige Turco | Cast | Actress | Nell Turbody | 4 |
 Patricia Velásquez | Cast | Actress | 2 | |
 Patti D'Arbanville | Cast | Actress | Ellie | 6 |
 Paula Devicq | Cast | Actress | Sondra | 6 |
 Peter Maloney | Cast | Actor | 3 | |
Peter Tolan | Cast | Actor | 1 | |
 Robert John Burke | Cast | Actor | Mickey Gavin | 1 |
 Robert Turano | Cast | Actor | 3 | |
Scott Davidson | Cast | Actor | 1 | |
 Sherri Saum | Cast | Actress | Natalie | 5 |
 Siobhan Fallon Hogan | Cast | Actress | Phyllis | 3 |
 Stephen Singer | Cast | Actor | 1 | |
 Steven Pasquale | Cast | Actor | Sean Garrity | 93 |
 Susan Misner | Cast | Actress | Theresa | 3 |
 Susan Sarandon | Cast | Actress | Alicia Green | 6 |
 Tatum O'Neal | Cast | Actress | Maggie Gavin | 13 |
 Timothy Adams | Cast | Actor | Mike's Roommate | 7 |
 Tony Cucci | Cast | 3 | ||
 Tuck Milligan | Cast | Actor | 1 | |
 Ty Jones | Cast | Actor | 1 | |
 Virginia Louise Smith | Cast | Actress | Lisa | 1 |
 Alexa Havins | Cast | Actress | 1 | |
 Alexie Gilmore | Cast | Actress | 1 | |
 Allison McAtee | Cast | Actress | 1 | |
 Andrea Rosen | Cast | Actress | 1 | |
 Ashlie Atkinson | Cast | Actress | Theresa | 6 |
 Bernardo de Paula | Cast | Actor | Jesus Christ | 1 |
Chris Bowers | Cast | Actor | Larry Bird | 4 |
 Curtiss Cook | Cast | Actor | Project Resident | 1 |
 David Walton | Cast | Actor | 2 | |
Ed Sullivan | Cast | Billy Warren | 1 | |
Greg D'Agostino | Cast | NYPD Officer | 1 | |
 Harriett D. Foy | Cast | Actress | Karlene Simpson | 1 |
 Jarah Mariano | Cast | Actress | 5 | |
 Jennifer Ferrin | Cast | Actress | 2 | |
 Jill Latiano Howerton | Cast | Actress | Geneva | 2 |
 Kristina Apgar | Cast | Actress | Nicole | 2 |
 Kristina Klebe | Cast | Actress | 3 | |
 Maggie Siff | Cast | Actress | 1 | |
 Marjan Neshat | Cast | Actress | 2 | |
 Michael Lombardi | Cast | Actor | Mike Silletti | 93 |
 Milena Govich | Cast | Actress | Candy | 8 |
Natalie Distler | Cast | Colleen Gavin | 2 | |
 Olivia Crocicchia | Cast | Actress | Katy Gavin | 2 |
 Ramón Rodríguez | Cast | Actor | Kevin Vasquez | 1 |
Ric Sechrest | Cast | 1 | ||
 Rosemarie DeWitt | Cast | Actress | Heather | 2 |
 Trevor Heins | Cast | Actor | Connor Gavin | 2 |
 Tricia Paoluccio | Cast | Actress | 1 | |
 Lauren Potter | Cast | Actress | Drunk Chick | 1 |
 Taylor Dayne | Cast | Actress | 1 | |
Jessica Leccia | Cast | Mary Magdalene | 4 | |
Hunter Reid | Cast | Actor | Johny Gavin at 5 | 1 |
Phil Esposito | Cast | Actor | 2 | |
 Chester A. Sims II | Cast | Actor | Mr. Wilmore | 1 |
 Marie-Line Grinda | Cast | Actress | Dr. Collins | 1 |
 Russ Anderson | Cast | Actor | Bobby "Teflon" Teff | 2 |
Niels Jorgensen | Cast | Niels | 1 | |
| Person | Type | Job | Role(s) | Episodes |
