Guest Starring: Daniel Hugh Kelly (Man), Liane Balaban (Emma Mastin), Steven Brand (Jon Craig / Hit Man), Waleed F. Zuaiter (Theirry / Sheik), Hrach Titizian (Taxi Driver / Traffic Cop), Allan Louis (Dan Williams), Andrea Carina Pearson (Flirty Lady / Employee)
Co-Starring: Amy Wieczorek (Waitress / Store Manager), Kristofer McNeeley (Sporty Man / Stockist), JJ Snyder (Sporty Woman), Gary Weeks (Clay Mastin), Austin Chase (Joshua Mastin)
Written By: Dave Kalstein
Directed By: Kate Woods
Ep: 27
Borderline
Special Guest Star: Peter Cambor (Operational Psychologist Nate Getz)
Guest Starring: Alan Ruck (Donald Wexling), Billy Magnussen (Marine Corporal Allen Reed), Vincent Laresca (Guillermo "Memo" Torres), Graham Shiels (Quinn), Bruno Gioiello (Marine Major Orley)
Co-Starring: Dusty Sorg (Jerry J), Walter Fauntleroy (Marine Lance Corporal Edward Mintoya), Zachary Stockdale (Marine Private First Class Liam Walker), Ashanti Brown (Marine Lance Corporal Shelly Hastings)
Written By: R. Scott Gemmill
Directed By: Terrence O'Hara
Ep: 28
Special Delivery
Guest Starring: Renée Felice Smith (NCIS Analyst Nell Jones), Navid Negahban (Aziz Anshiri), Matt Cohen (Marine Private First Class James Winston), Austin Stowell (Marine Corporal Andrew Peterson), Camryn Grimes (Diane Farley), Naz Deravian (Mrs. Anshiri), Aalok Mehta (Proprietor), Jarrod Crawford (Marvin), Kinsey McLean (PFC)
Co-Starring: David Arrigotti (Durell), Xaypani Baccam (Frank), Kevin Peake (Paul), Mellany Gandara (Christie)
Written By: Gil Grant
Directed By: Tony Wharmby
Ep: 29
Little Angels
Guest Starring: Renée Felice Smith (NCIS Analyst Nell Jones), Alicia Coppola (FBI Senior Special Agent Lisa Rand), Brian McNamara (Navy Commander Jason Rehme), Vincent Irizarry (Andre Maragos), Louis Mandylor (Lucas Maragos), Elaine Hendrix (Vanessa Maragos), Haley Ramm (Amanda Rehme), Michael Holden (Lawyer), Tyler Neitzel (Daniel Proeffer)
Co-Starring: Erik Fellows (Navy Seal Bryan Dickerson), Jake Borelli (Stefan Maragos), Lorenzo James Henrie (Evan Maragos), Michael Cannon (Butler), Obren Milanovic (Serbian Paramilitary), Suzanne Quast (Rebecca Turman), Mariah Wilson (Girl)
Written By: Frank Military
Directed By: Steven De Paul
Ep: 30
Standoff
Guest Starring: Marisol Nichols (Tracy Keller), Renée Felice Smith (NCIS Analyst Nell Jones), Stephen Snedden (FBI Special Agent John White), Andrew Ableson (James Thomas Mason), Parry Shen (Ty)
Co-Starring: Matthew Grant Godbey (LAPD OIC Dan Evans), Leyna Nguyen (ZNN Reporter)
Written By: Joseph C. Wilson
Directed By: Dennis Smith
Ep: 31
Anonymous
Guest Starring: Kate Levering (Jillian Leigh), Renée Felice Smith (NCIS Analyst Nell Jones), Christopher Judge (Assan Rafiq), Carlos LaCamara (David Fernandez), Greg Collins (Michael Barnes), Lynn Chen (Nurse Lisa), Cassandra Jean (Receptionist)
Co-Starring: Heather Prete (Half-Naked Lady)
Written By: Christina M. Kim
Directed By: Norberto Barba
Ep: 32
Bounty
Guest Starring: Renée Felice Smith (NCIS Analyst Nell Jones), Dariush Kashani (Jafar Khan), Stephen Amell (Andrew Weaver), Brett DelBuono (Brandon Booth), Mary Pat Gleason (Landlady)
Co-Starring: Anthony Michael Jones (Thomas Booth), Wolf Amer (Afghan Thug 1), Omar Leyva (Cashier), Pablo Espinosa (LAPD Officer), William May (Teenage Boy)
Written By: Dave Kalstein
Directed By: Felix Alcala
Ep: 33
Absolution (part 1)
Guest Starring: Jürgen Prochnow (Matthias), Renée Felice Smith (NCIS Analyst Nell Jones), Mark Pinter (Sebastian Renner), Scott Connors (NSA Agent)
Guest Starring: Jürgen Prochnow (Matthias), Renée Felice Smith (NCIS Analyst Nell Jones), Nico Evers-Swindell (Blond Russian #1), Chris L. McKenna (CIA Agent), Samantha Quan (Diane Vincent), Matthew Jones (Cop)
And: Raymond J. Barry (Branston Cole)
Co-Starring: Candace Edwards (Nurse)
Written By: Frank Military & Shane Brennan
Directed By: Tony Wharmby
Ep: 35
Disorder
Guest Starring: David Hoflin (NCIS Special Agent Former Navy Lieutenant Lance Talbot), Azita Ghanizada (Rochelle Stanton / Mrs. Covesian), Charles Carpenter (LAPD Detective), Thomas Hobson (Lead Caroler), Beth Behrs (Female Caroler)
Co-Starring: Piper MacKenzie Harris (Allie Chambers), Valerie Rose Curiel (Rosa Munoz), Marta McGonagle (Maria Rivero / Helen Ruiz), Alejandro Patino (Day Laborer), Marcos de Silvas (Martinez), Marlon Correa (Sal), Joe Orrego (Juan Munoz)
Written By: Lindsay Jewett Sturman
Directed By: Steven De Paul
Ep: 44
The Job
Guest Starring: Victor Webster (Stanley King), Amy Sloan (Patricia Dunn), Kyle Davis (Bobby Asher)
Co-Starring: Gene Gabriel (Michael Connor), Nichelle Hines (Forensic Specialist), Haran Jackson (Marine Guard)
Written By: Frank Military & Christina M. Kim
Directed By: Terrence O'Hara
Ep: 45
Rocket Man
Guest Starring: Harry Van Gorkum (Harlan Holt), Wynn Everett (Ariel Drewett), Gideon Emery (Jeff Kinto), Danny Jacobs (Colin Benson)
Co-Starring: Tom Ohmer (Curtis Roby), Terrence Stone (Ollie Drewett), Austin Priester (Technician), David Haley (DOD Police Officer), Jeremy Denzlinger (DOD Guard)
Written By: Roger Director
Directed By: Dennis Smith
Ep: 46
Plan B
Guest Starring: Channon Roe (Ray Martindale), Evan Parke (Nelson Sanders), Erin Foster (Nicole Martindale), Joe Egender (Joey), Cathy Lind Hayes (Judge), Mo Gallini (Boss)
Co-Starring: Shannon Collis (Jenna), Rebeka Montoya (Hostess), Ron Roggé (Bartender), Ina Barron (Beautiful Gatekeeper)
Written By: Dave Kalstein & Joseph C. Wilson
Directed By: James Whitmore, Jr.
Ep: 47
Imposters (part 1)
Guest Starring: Blake Gibbons (Fallon), Kristen Hager (Star), Dean Chekvala (Ryan Long), Jake Richardson (Drew Stetson), Charlene Amoia (Michelle Ardell), Collins Pennie (Mark), Bruno Verdoni (Shepherd), Max Bunzel (Stever Koster)
And: Claire Forlani (Lauren Hunter)
Co-Starring: Neil Barton (Bouncer)
Written By: R. Scott Gemmill
Directed By: John Peter Kousakis
Ep: 48
Familia (part 2)
Special Guest Star: Rocky Carroll (NCIS Director Leon Vance)
Guest Starring: Claire Forlani (Lauren Hunter), Cristine Rose (Alexa Comescu), Robin Atkin Downes (Older Guy), Adam Tsekhman (Grigore Comescu), Jilon Ghai (Luca), Michael G. Welch (Bernie Fischer)
Co-Starring: James Ryen (Suit Guy), Rob Locke (Big Guy), Angelina Lumir (Luca's Floozie), Dylan Boyack (Kid), Craig Robert Young (Dracul Comescu), Hans Schoeber (Older Man)