- Chet Badalato
- support staff: Mr. Nicholson
- Tamara Bally
- production accountant
- Eric Borja
- office staff assistant
- Marianne Bower
- researcher
- Kayce Brown
- assistant: Mr. DiCaprio
- Jamie Buckner
- office staff assistant
- Daniel B. Cone
- set staff assistant
- Treeve Currie
- office staff assistant
- Grey Cusack
- production intern
- Michelle DeForest
- set staff assistant
- Thomas B. Duffy
- technical consultant (as Thomas P. Duffy)
- Abby Eon
- staff assistant
- Jane Fagan
- assistant: Mr. DiCaprio
- Michael James Faradie
- stand-in: Mr. DiCaprio
- David Fischer
- set staff assistant
- Frank Foley
- craft service (as Francis L. Foley)
- Lauren Gale
- craft service: Cecil B. DeMeals
- Mark Hagerman
- production office coordinator
- Tim Hirten
- technical consultant
- Steve Hoare
- assistant production coordinator: Boston (as Steve Oare)
- Syndey Huynh
- production secretary: Boston
- Margaret Jacobs
- production office coordinator
- Larry Kaplan
- unit publicist
- Sean King
- set staff assistant
- Wai Keung Lau
- director: Infernal Affairs (as Andrew Lau Wai Keung)
- Kristina Lee
- office staff assistant
- Alan Mak
- director: Infernal Affairs
- Matthew Mason
- set staff assistant (as Matt Mason)
- Tim Monich
- dialect coach
- Meg Montagnino-Jarrett
- production office coordinator: Boston
- Colin J. O'Hara
- assistant: Mr. Damon (as Colin John O'Hara)
- Denis O'Sullivan
- assistant: Mr. King
- Steve Oppenheim
- set staff assistant (as Steven F. Oppenheim)
- Freida Orange
- assistant: Mr. Scorsese
- Katrina Parsons
- production secretary: Boston
- Maria Cira Paseka
- craft service: Cecil B. DeMeals (as Maria Paseka)
- Dawn Perlin
- assistant: Mr. Nicholson
- Jill K. Perno
- set staff assistant (as Jill Perno)
- Luke Poling
- office staff assistant
- Meredith C. Powell
- staff assistant (as Meredith Powell)
- Judy Pursley
- assistant production accountant
- Virginia Reilly
- assistant production accountant: Boston
- Jennifer Sacks
- office staff assistant
- Charlie Scimone
- craft service (uncredited)
- Christine Scott
- assistant: Mr. Nicholson
- Maurice Sessoms
- set staff assistant
- Tamar Simon
- assistant: William Monahan
- Kim Surowicz Allen
- assistant: Mr. Brown (as Kim Surowicz)
- Jesse Toledano
- set staff assistant
- Eric Weinstein
- assistant: Mr. Wahlberg
- Irene Yeung
- assistant: Mr. Davison & Mr. Lee
- Amanda Abel
- production assistant: Boston (uncredited)
- Ernesto Alcalde
- first assistant accountant: reshoots (uncredited)
- Justin Ambrosino
- production assistant (uncredited)
- Vatche Arabian
- production assistant (uncredited)
- Daniel Aronovitz
- production assistant: Boston (uncredited)
- Donna Bizzaro
- production assistant (uncredited)
- Karen Mae Black
- production assistant (uncredited)
- Anthony Blanco
- production assistant (uncredited)
- Max A. Butler
- additional set production assistant (uncredited)
- Kerry Carter
- production assistant: Boston (uncredited)
- Matt Cavanaugh
- production assistant: Boston (uncredited)
- Santena Jenaris King Clough
- second assistant accountant (uncredited)
- Santos Cornier
- parking assistant (uncredited)
- Sascha Stanton Craven
- production assistant (uncredited)
- Sheena Crothers
- pre-production assistant (uncredited)
- Amy V. Dewhurst
- set production assistant (uncredited)
- Sonu Dham
- production assistant (uncredited)
- Jeff Dionne
- production assistant: Boston (uncredited)
- John Edmundson
- production assistant (uncredited)
- Michael James Faradie
- photo double: Mr. DiCaprio (uncredited)
- Adam Farrell
- set production assistant (uncredited)
- Kathleen Fellegara
- set medic (uncredited)
- Maja Fernqvist
- production assistant (uncredited)
- Jack Fitz
- stand-in (uncredited)
- Sara Gagliardi
- accounting clerk (uncredited)
- David Giammarco
- production associate (uncredited)
- Jay Giannone
- consultant (uncredited)
- Chris Gibson
- production assistant (uncredited)
- Kevin Hall
- production assistant (uncredited)
- Ben Hauck
- stand-in: Leonardo DiCaprio, re-shoots (uncredited)
- Michael Hekmat
- production assistant (uncredited)
- Steven Ho
- fight trainer: Leonardo DiCaprio (uncredited)
- Steven Holtzman
- production assistant (uncredited)
- Jason Irizarry
- Security: Mr. Dicaprio (uncredited)
- Rick Kain
- stand-in (uncredited)
- Jeff Kalligheri
- consultant (uncredited)
- Adam Kassan
- production executive (uncredited)
- Gus Kelley
- body double (uncredited)
- Amir R. Khan
- set production assistant: re-shoots (uncredited)
- Nazia Khan
- assistant: Mr. Pitt (uncredited)
- Jason Klein
- production assistant (uncredited)
- Chris Lane
- production assistant (uncredited)
- Andrew Lee
- production assistant: reshoots (uncredited)
- Katie Letien
- production assistant (uncredited)
- Gee Malik Linton
- physical trainer: Mr. DiCaprio (uncredited)
- Lori A. Lopes
- construction accountant (uncredited)
- James MacDonald
- set medic (uncredited)
- Elizabeth MacSwan
- set production assistant (uncredited)
- Lisa Madden
- assistant accountant (uncredited)
- John Malakoff
- production travel consultant (uncredited)
- Rob Marin
- photo double (uncredited)
- Michael Richard Martin
- set production assistant (uncredited)
- Gabriel Mason
- production executive (uncredited)
- Richard McDonough
- set production assistant (uncredited)
- Chris McMullin
- stand-in (uncredited)
- Seth Mittelman
- intern (uncredited)
- Mario Nila
- production assistant (uncredited)
- James Northrup
- production assistant (uncredited)
- Peter Olejnik
- production assistant (uncredited) / production assistant: Boston (uncredited)
- Debbie Pearl
- animal coordinator (uncredited)
- Francesco Pezzulli
- Italian dubbing: Billy (uncredited)
- John Pungitore
- production assistant: Boston (uncredited)
- Kim Quam
- set medic (uncredited)
- Allan Rafael
- film runner (uncredited)
- Guillaume Renberg
- remote head technician (uncredited)
- Ronald Riccioli
- photo double: David O'Hara (uncredited)
- Jennifer Roberts
- production assistant: re-shoots (uncredited)
- Rich Rothbell
- stand-in (uncredited)
- Chuck Rudolph
- production assistant (uncredited)
- Jonathan Russek
- assistant production coordinator: additional photography (uncredited)
- Patricia Rybarczyk
- production assistant (uncredited)
- Caren Sachs
- assistant: Kelley Smith-Wait (uncredited)
- Nina Saxon
- title designer (uncredited)
- Ben Schoen
- end titles: Scarlet Letters (uncredited)
- Tom Sexton
- catering coordinator (uncredited)
- Matthew Silverman
- production assistant (uncredited)
- Mike Sime
- video playback engineer (uncredited)
- Jeffrey Sneider
- production assistant (uncredited)
- Ashleigh Stanczak
- production assistant (uncredited)
- Cami Stratton
- accounting clerk (uncredited)
- Alan Francis Sullivan
- stand-in (uncredited)
- Brainerd Taylor
- video administrator (uncredited)
- Kim Tobash
- on-set tutor (uncredited)
- David Torn
- textures & guitar (uncredited)
- Kai Van Der Putten
- production assistant (uncredited)
- Jennifer Wachtell
- executive team (uncredited)
- Amy Wallenberg
- production assistant (uncredited)
- Han West
- production assistant: Boston (uncredited)
- Felicia Williams
- production assistant (uncredited)
- Tasha Zamsky
- animal trainer (uncredited)
- Tania Zarak
- production assistant (uncredited)
