Celine

Celine Delacroix is apart of the Naturals Program. She appears in Bad Blood. It's revealed that she is Michael's sister.

Celine instantly takes a liking to Sloane and finds her quirks amusing. She flirts with Sloane at the pool and affectionately calls her "Blondie."

Natural Skills
She's a fantastic artist. She prefers to draw only the face of the person.

Books
Bad Blood Celine joins the team as the new sketch artist.

Twelve Since she is older, she has already become an agent and gone through training to become a new Intelligence Analyst Trainee (NIAT) at the FBI Academy.

Relationships
Sloane

Celine and Sloane meet in Bad Blood, upon which Celine immediately starts flirting with Sloane, though Sloane is oblivious. In Twelve we find out that they are in a relationship.

Michael Townsend Brother