NCIS' creative team had a heads up Pauley Perrette would be leave her role as Abby on the crime procedural, which ultimately led to the creation of her successor, Kasie Hines. Diona Reasonover got a front-row seat to hearing how her character came to be, thanks to a conversation with the man who created Kasie, Scott Williams.
As we wait for NCIS' return to the 2026 TV schedule to resolve that wild cliffhanger, writer Scott Williams appeared on the Partners & Probies podcast to talk about a litany of topics. This included the beginnings of forensic scientist Kasie Hines, which Williams explained was a response to the series losing Abby: