Cade Lambert (formerly "Cade LaSalle") was a man who was the brother of Christopher LaSalle, the son of Beau LaSalle and an unnamed woman as well as the stepson of Rose LaSalle.
Biography
Pre-Series
NCIS: New Orleans Season 1
Episode 12

Young Cade in a flashback from the NCIS: New Orleans Season 1 episode, "You'll Do".