Leon Vance is a supporting character on two shows: NCIS and its spinoff NCIS: Los Angeles.

He's the director of both units.

Formerly Assistant Director, Vance was named NCIS Director after the death of Jenny Shepard.

He attended the Naval War College and was commissioned as a 2nd Lieutenant in the U.S. Marine Corps, but was forced to take a medical discharge before serving due to having undergone surgery to repair a detached retina suffered during his short-lived, ill-fated boxing career.

After joining NCIS, Vance was assigned on a protection detail for a Serbian politician at a UN Summit in Prague.

The politician and Vance's partner, Neil Wilson, were killed by North Korean operative Lee Wuan Kai and he was wounded.

He spent several years chasing her down.

Leon Vance has a wife, Jackie, and two children, Kayla and Jared. He met his wife while at a University of Maryland basketball game while Len Bias was playing.

 

Leon Vance Quotes

Maria [prospective nanny]: It was so very nice meeting you, Director. And I do hope you'll do me the honor of being governess to your lovely children. We'll play games and sing songs and...
Vance: Well that sounds great Maria but I do have a few other applicants to meet...I promise I'll let you know soon. Thank you.

Vance: Bad cop?
Gibbs: You've been playing good cop all this time?

NCIS Quotes

McGee: All right. Well you should probably know that Abby and I used to date?
Bishop: Ew. Like, each other?
McGee: Yeah.
Bishop: Wait - isn't that a violation of rule 12, never date a....
McGee: It was a long time ago. After we'd broken up, one night I went to her lab. Found a scribbled piece paper; a list. Potential boyfriends had to fulfill certain conditions by a pre-arranged date or else, goodbye.
Bishop: Such as.
McGee: Things started off relatively normal: opening the door for her, flowers, putting the seat down. Then around number 8, it gets uh...
Bishop: What?
McGee: Does she know you have these?
Bishop: Does she know you have these?
McGee: Yeah she wasn't happy when she found out.
Bishop: These are all very specific.
McGee: Yeah.
Bishop: These ideas apply to you?
McGee: No those rules weren't in place when we were together. At least I don't think so.
Bishop: What's with the two month cutoff? Abby's sabotaging herself. I've seen stuff like this before. We have to talk to her.

McGee: Rule number 70 - keep digging till you hit bottom.
Abby: McGee! There is no rule 70.
McGee: Well, I--
Abby: You just made up a rule. This McGibbs thing has really gone to your head. I don't even recognize you right now.