Callen's shooting which he was recovering from took place in the NCIS episode "Legend".
Hetty has known Callen for three years.
Kensi Blye was raised in the Marine Corps.
Callen is fluent in Spanish. Dominic and Hetty are fluent in Latin.
Callen's nickname G is the only information he has about his first name.
Prior to joining NCIS, Special Agent Callen was an FBI agent and Special Agent Hanna was a Navy SEAL.
Hetty: Expense accounts; yours are six months behind. I would have thought that seeing you had time off for recuperation, you would have caught up on your paperwork
G: Please tell me you're kidding me, Hetty.
Hetty: Well, I could but it would be a lie. No rush tomorrow will be fine...
Hetty: Wardrobe for your undercover work. I know you grew up in the well meaning but cold embrace of the welfare state, Mr. Callen, but just because you're an orphan doesn't mean that you have to dress like Oliver Twist.
G: In the three years we known each other, you've never called me "G".
Hetty: It's not a name, it's a letter.
G: What are we? If anyone asks.
Sam: Uhh, city inspectors
G: No, no one talks to city inspectors
Sam : Okay, you're a realtor and I'm your client; you're showing me an apartment.
G: Do I look like a realtor?
Sam : Okay, I'm a realtor and you're the guy looking for an apartment. Can we go?
G: Would I like a place like this? I don't even know if I can afford a place like this.
Sam: That's why I'm showing you to see if you'd wanna live in a place like this.
G: Does it have a Jacuzzi?
Sam: If it has, I'm going to drown you in it.
G: Where are we with friends or lovers?
Sam: There is this one stand out guy.
G: Friend or lover?
Dominic : Not really the question that jumped out at me.
G: Informed guess?
Dominic: He's a six foot three, two hundred pound, Special Forces paratrooper guy. Leaning towards a friend.
Sam: Good call, Dom.
Sam: I'm definitely getting you a birthday card this year.
G: Great. Make sure you put some money in it.
Sam: How 'bout I put some personality in it.
International Air Dates:
Australia: September 30, 2009 on Channel Ten
United Kingdom: October 21, 2009 on Sky1/Sky1 HD
Sweden: November 10, 2009 on TV3
Denmark: December 1, 2009 on TV3
Norway: December 7, 2009 on TV3
Latin America: March 3, 2010 on A&E
The Netherlands: March 7, 2010 on Veronica
Germany: July 24, 2010 on SAT 1
Finland: August 11, 2010 on Nelonen
Czech Republic: November 5, 2010 on AXN
Slovakia: June 23, 2011 on Markiza
Goof: During the opening scene, LAPD patrol vehicles are chasing the bad guys. The LAPD air ship call the units with a "6A" designator, which indicates Hollywood Division. However, the number "15" is on the trunks of the patrol vehicles, which indicates a North Hollywood unit. Different divisions, different radio frequencies, different bureaus and a mistake the LAPD air ship would never make.
Goof: When Kensi welcomes Callen back, he asks if she's "still making the weekend drive up to Pendleton" from the team's base in Los Angeles. However, Marine base Camp Pendleton is in San Diego, two hours south of Los Angeles.