Which Sherlock co-creator is married to producer Sue Vertue?

Steven Moffat is the Sherlock co-creator married to producer Sue Vertue.

Moffat and Vertue met at the Edinburgh Television Festival in 1996, and their personal relationship later became part of their professional partnership. They joined Hartswood Films, the production company run by Vertue’s mother, Beryl Vertue. Moffat wrote the sitcom Coupling partly from the evolution of his relationship with Sue; its central characters were even named Steve and Susan.

Vertue produced Sherlock, while Moffat co-created the series with Mark Gatiss and served as one of its principal writers. Their collaboration helped shape the modern London setting, rapid dialogue and technology-driven mysteries that distinguish the BBC adaptation from many traditional versions of Sherlock Holmes.

The other names in the options were involved with the programme but do not fit the clue. Paul McGuigan directed several episodes, Stephen Thompson wrote episodes, and Mark Gatiss co-created the series and played Mycroft Holmes. Gatiss is Moffat’s creative partner on Sherlock, not Vertue’s husband.