NCIS: Los Angeles Guest cast, played by Christophe Lambert Episode 3x15: Crimeleon (Feb 14, 2012) Episode 3x23: Sans Voir (May 15, 2012) Episode 3x24: Sans Voir, Part 2 (May 15, 2012) Episode 4x01: Endgame (Sep 25, 2012) Episode 4x24: Descent (May 14, 2013) Episode 5x01: Ascension (Sep 24, 2013)