Watson Showrunner on Why [Spoiler] Dies in Finale

Yahoo

12-05-2025

Showrunner Craig Sweeny explained the shocking death in the Watson Season 1 finale and the story choices behind it.
He said the finale marked a turning point for Watson and that Moriarty's end may impact Season 2.
In the Watson Season 1 finale, Moriarty dies after Dr. Watson infects Randall Park's character with a genetically tailored disease. Watson asks Moriarty to cure Stephens. But when he decides not to, Watson lets him die from the disease he has been infected with.
Craig Sweeny told ScreenRant, 'It was not a vengeful act by Watson.' '[It was] rather a prophylactic one to prevent the damage that he was able to do in the future with all of that DNA,' he added.
The show framed Moriarty's death as a necessary conclusion to the crisis caused by his stolen DNA library. Sweeny stated, 'He was capable of using it to kill basically anyone in the world without a trace that he had stolen the secrets of Watson's patients.'
The decision to kill him was part of a narrative arc in which Watson steps out of Sherlock Holmes' shadow. 'Season 1 was the story of Watson becoming his own man outside of the shadow of Sherlock Holmes by confronting Holmes' nemesis and defeating him,' Sweeny said.
The showrunner emphasized that questions about Moriarty will remain relevant. 'The open questions about Moriarty remain open and of interest to us narratively,' he stated. 'The overarching storyline that we do plan for Season 2 will accommodate some further illumination of who that guy was,' Sweeny added.
Sweeny also noted that Ingrid could have been swayed by Moriarty in a different timeline. 'If he had approached her in a slightly different timeline than he did, he probably would've had a different result.' The showrunner added, 'She connected more and more over the course of the season to both Watson and to Sasha, in particular.'
Although Moriarty is dead, Sweeny confirmed, 'The Sherlock Holmes canon will not go away… actual events and characters from the stories will figure into Season 2.'
Notably, the producers have not yet announced the release date of Season 2.
Originally reported by Anubhav Chaudhry on ComingSoon.
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