Moon Bloodgood Returns as Katherine Casillas on ‘NCIS: LA’ (PHOTOS)

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Concours d'Elegance
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Concours d'Elegance
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Franklin Shapiro (guest star Christian Barillas)

NCIS: Los Angeles - Daniela Ruah as Special Agent Kensi Blye and Eric Christian Olsen as LAPD Liaison Marty Deeks - 'Concours d'Elegance'
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Kensi (Daniela Ruah) and Deeks (Eric Christian Olsen)

Concours d'Elegance
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Kensi, Deeks, and Franklin

Concours d'Elegance
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Good news? Bad news?

Concours d'Elegance
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Juda Ayari (guest star George Janko)

Concours d'Elegance
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Juda, Callen (Chris O’Donnell), and Sam (LL Cool J)

Concours d'Elegance
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What does he know?

Moon Bloodgood as Katherine Casillas in NCIS: Los Angeles - 'Concours d'Elegance'
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Katherine Casillas (returning guest star Moon Bloodgood)

Moon Bloodgood as Katherine Casillas in NCIS: Los Angeles
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Katherine and Fatima (Medalion Rahimi)

Concours d'Elegance
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Sam and Callen

NCIS: Los Angeles - Concours d'Elegance - Moon Bloodgood (Katherine Casillas) and Chris O'Donnell (Special Agent G. Callen)
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Sam and Callen reunite with Katherine.

Concours d'Elegance
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What will the team learn at this event?

Concours d'Elegance
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What’s Fatima looking at?

Concours d'Elegance
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Katherine and Sam

NCIS: Los Angeles - Concours d'Elegance - Medalion Rahimi (NCIS Special Agent Fatima Namazi) and Chris O'Donnell (Special Agent G. Callen)
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Fatima and Callen

Moon Bloodgood as Katherine Casillas in NCIS: Los Angeles - 'Concours d'Elegance'
Trae Patton/CBS

Katherine

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The team is getting help from an old ally in Sunday’s episode of NCIS: Los Angeles.

Moon Bloodgood returns as insurance broker Katherine Casillas in “Concours D’Elegance.” She previously appeared in “Provenance,” in which she helped the agents with a case in the art world, including talking Kensi (Daniela Ruah) through an undercover assignment.

And now, Sam (LL Cool J) and Callen (Chris O’Donnell) cross paths with her during their investigation into the theft of an undersea drone prototype and a link to a video game streamer’s elaborate party; she insures the gamer’s property.

Click through the gallery above for a look at Katherine working alongside the team again and the rest of the case.

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