Does anyone live in warwick castle today?

No, no one lives in Warwick Castle as of 2023. While it is a historic site that has been in existence since the 11th century, the castle is currently managed and operated as a tourist attraction and event venue by the Warwick Castle Group, a subsidiary of Merlin Entertainments. The last private resident of Warwick Castle was Guy Francis Maynard, 5th Baron Maynard, who passed away in 1984.