Denis Leary Denis Leary
plays Tommy Gavin
Mike Lombardi Mike Lombardi
plays Mike Silletti
Steven Pasquale Steven Pasquale
plays Sean Garrity
Andrea Roth Andrea Roth
plays Janet Gavin
John Scurti John Scurti
plays Kenny Shea
Daniel Sunjata Daniel Sunjata
plays Franco Rivera
Callie Thorne Callie Thorne
plays Sheila Keefe
Adam Ferrara Adam Ferrara
plays Chief 'Needles' Nelson
Larenz Tate Larenz Tate
plays Black Shawn
Tatum O'Neal Tatum O'Neal
plays Maggie Gavin Garrity
Jack McGee Jack McGee
plays Chief Jerry Reilly
 

Writers

155 episodes, creator
138 episodes, creator
41 episodes, written by
4 episodes, writer
Zach Robbins
3 episodes, written by
Mike Martineau
3 episodes, writer
2 episodes, written by
Robert Krausz
1 episodes, writer
Danielle Giovanniello
1 episodes, story
Michael Caleo
1 episodes, writer
Stephen Belber
1 episodes, writer

Directors

25 episodes
23 episodes
19 episodes
11 episodes
5 episodes
3 episodes
2 episodes
2 episodes
2 episodes
2 episodes
Valerie Harrington
1 episodes
1 episodes

Producers

87 episodes, executive producer
64 episodes, co-producer
43 episodes, executive producer
36 episodes, producer
29 episodes, executive producer
28 episodes, co-producer
14 episodes, co-producer
11 episodes, associate producer
9 episodes, associate producer
Leslie Tolan
7 episodes, co-executive producer
3 episodes, co-executive producer
Paul Anderson (II)
3 episodes, associate producer
Mike Martineau
3 episodes, consulting producer
Terrence Quinn
2 episodes, consulting producer
1 episodes, associate producer