The episode begins with the disappearance of six-year-old from his bed during a wild, drug-fueled party hosted by his mother, Nadine. As the SVU team investigates, they uncover a highly dysfunctional home life where the child was often neglected. The investigation reveals that Theo's nanny, Gloria Ramirez , kidnapped him with the intention of taking him to Mexico to live with her parents, believing it was in the boy's best interest to escape his mother's unstable lifestyle. Key Characters & Guest Stars
: Played by Iain Armitage (best known for Young Sheldon ). [S18E8] Chasing Theo
: Played by Zoe McLellan , Nadine's ex-girlfriend who also fights for Theo's well-being. The episode begins with the disappearance of six-year-old
: Played by Robert John Burke, whose relationship with Olivia Benson reaches a turning point in this episode. Major Themes & Developments Chasing Theo - Law & Order: Special Victims Unit - IMDb Key Characters & Guest Stars : Played by
: Played by Adriana DeGirolami , the nanny who abducts Theo.
