Eric Christian Olsen Breaks Down Deeks' Dark History on 'NCIS: Los Angeles'

Aubry D'Arminio
Preview Erik Voake/CBS

Maybe it’s his quips, his old T-shirts or the bangs that make him look a bit like Shaggy from Scooby-Doo. But lawyer-cum-cop-cum-NCIS agent Deeks (Eric Christian Olsen) usually seems the least tortured of the NCIS: Los Angeles crime fighters — which is about as true as calling petite boss Hetty (Linda Hunt) the tallest of the team.

In the October 28 episode, Deeks’ dark past returns. Olsen helps us recall what got Deeks here and previews his future with colleague/love Kensi (Daniela Ruah).

Eric Christian Olsen Talks Marty Deeks' Future on 'NCIS: Los Angeles'

Eric Christian Olsen Talks Marty Deeks' Future on 'NCIS: Los Angeles'

Fans have expressed concern over what's to come for the actor's beloved character.

He Shot a Crooked Police Officer

While still on the force more than a decade ago, Deeks killed his bent partner to protect hooker Tiffany (Paulina Olszynski), now a criminal informant for NCIS. "He really cares about her," Olsen explains.

He Told Another Cop

Later, thinking internal affairs detective Ellen Whiting (recurring guest star Karina Logue) was dying, he confessed his sins. But she survived. Tonight she’s back — with Tiffany, who’s in legal trouble that only NCIS and lawyer Deeks can fix without exposing her snitching.

"Pro Se" - Pictured: Eric Christian Olsen (LAPD Liaison Marty Deeks) and Daniela Ruah (Special Agent Kensi Blye). While assisting NCIS with an undercover operation, informant Elizabeth Williams (Dendrie Taylor) is arrested and the team is unable to provide her with an alibi. Also, Callen meets with ATF Agent Anna Kolcheck (Bar Paly) who remains on suspension following her last joint case with NCIS, on NCIS: LOS ANGELES, Sunday, Oct. 28 (9:00-10:00 PM, ET/PT) on the CBS Television Network. Photo: Erik Voake/CBS ©2018 CBS Broadcasting, Inc. All Rights Reserved.

Olsen and Ruah in NCIS: Los Angeles.

"Ellen comes at Deeks guns blazing," Olsen says. "She’s the first to say that he must help." But since Deeks’s old law colleagues at the courthouse would recognize him and connect Tiffany with the NCIS, he can’t defend her himself.

"It would be hypocritical of him to save her life and put her back in jeopardy," he says. So Callen (Chris O’Donnell) goes undercover as Tiffany’s lawyer while real attorney Deeks feeds him lines from outside!

Now He’s Got Nuptials to Plan

"Kensi and Deeks fight terrorism," says Olsen. "That almost pales in comparison to making [wedding] seating charts. It’s wonderful because it’s something in their relationship that’s universal to everyone."

NCIS: Los Angeles, Sundays, 9/8c, CBS

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This article also appeared in the Oct. 15 - 28 issue of TV Guide Magazine

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