NCIS: Los Angeles/Purity

Purity
Season 4, Episode 20
Airdate	April 9, 2013
Written by	Joe Sachs
Directed by	Eric Laneuville
Stream
← 4x19 Red (2)	4x21 → Resurrection
NCIS: Los Angeles — Season Four

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Purity is the twentieth episode of the fourth season of NCIS: Los Angeles, and the ninety-second episode overall.

Starring: Chris O'Donnell (NCIS Special Agent G Callen), Daniela Ruah (NCIS Special Agent Kensi Blye), Eric Christian Olsen (LAPD Detective Marty Deeks), Barrett Foa (Tech Operator Eric Beale), Renée Felice Smith (Intelligence Analyst Nell Jones)

with Linda Hunt (Operations Manager Hetty Lange)

and LL Cool J (NCIS Special Agent Sam Hanna)

Guest Starring: Tom Gallop (Lawrence De Vries), Chris Bruno (Dominic Fryman), Jay Ellis (Naval Flight Officer Randall Baker), Rance Howard (Eugene), Mark Espinoza (Detective Lopez), Steven W. Bailey (Cam), Travis Aaron Wade (Navy Chief Petty Officer Crawford), Omar Elba (Zaki Faheem), Owen Teague (Alex Fryman), Lily Mariye (Ashley Hong), Steve Tom (Roger Morgan), Jade Carter (Navy Lieutenant Joshua Gordon), Bree Condon (Alessandra)

Co-Starring: Kent Shocknek (News Reporter)