Do You Know NCIS?

about events from different seasons and about the main cast members

1 Where is the base of NCIS located?
2 What is Director Shepard's real name?
3 Who was the doctor Duckie knew 18 years ago, that he meets again when she uncovers a marine in a World War II uniform?
4 What does Gibbs' former boss call him?
5 What did Abbey's assistant try to do?
6 Who was at the diner when Director Shepard when she died?
7 Who did Kate work for before NCIS?
8 Which character does Pauley Perrette play?
9 Who visits the Directors house while she is away?
10 How many assistants has Dr Mallard had?
11 Who is Elflord?
12 Who tries to protect a sniffing dog when it is suspected of killing his handler?
13 What happens to Palmer at a crime scene in a construction site?
14 What did Gibbs find in his back garden?
15 What is Agent McGee otherwise known as?