While initially appearing as a helpful retired detective with a deep understanding of missing persons cases, he gradually reveals his true nature as the series progresses. Baptiste harbors a dark past connected to the disappearance of his daughter Sophie, which fuels his obsession with finding the missing children in the show. His methods are often extreme and morally questionable, bordering on unethical and even criminal.
He frequently manipulates others, including his colleagues, and uses his influence to pursue his own agenda, regardless of the consequences. His relentless pursuit of justice often comes at the expense of others, making him a complex and controversial antagonist.