Martin "Marty" A. Deeks is a Detective with the Los Angeles Police Department and who serves as a liaison to NCIS via the LAPD which means that Deeks is responsible for facilitating communications between both agencies, and coordinating joint operations involving LAPD components.
The son of a man named Gordon John Brandel and Roberta Deeks, Deeks was born on January 8th, 1979 in California but Deeks didn't have a happy childhood as his father was an alcoholic who frequently abused Deeks and Deeks's mother, Roberta.
One day, Brandel became so drunk that he started wielding a shotgun at Deeks and his mother.
In response, young Deeks shot Brandel non-fatally with Brandal later ending up in prison.
Deeks later presumably moved away and attended college and law school. He became a public defense lawyer before choosing to join the Los Angeles Police Department.
NCIS: Los Angeles Season 1Edit
Deeks made his debut appearance in the NCIS: Los Angeles Season 1 episode Hand-to-Hand (episode), when he is undercover as his alias, Jason Wyler. During the case, it is discovered that he is in fact, an undercover LAPD detective. At the conclusion of the case, Hetty Lange offers him the position of LAPD/NCIS liason officer, where he becomes a member of the team assigned to the Office of Special Projects.
NCIS: Los Angeles Season 2Edit
NCIS: Los Angeles Season 3Edit
NCIS: Los Angeles Season 4Edit
NCIS: Los Angeles Season 5Edit
NCIS: Los Angeles Season 6Edit
NCIS: Los Angeles Season 7Edit
Deeks is a tall man in his early thirties with short blonde rugged hair and blue eyes.
He is often seen wearing jumpers, jeans and shoes.
When participating in a raid in the field, Deeks dons the official NCIS bulletproof vest and like Callen and Sam, also has a holster around his right thigh.
He also originally carried a Glock 17 before switching to a Beretta 92FS but in Season 3, exchanged his Beretta 92FS for a Smith & Wesson 5944 which he has continued to use to this day.