Male. It reminds me of Captain Sheridan of Babylon 5, as played by Bruce Boxleitner of the boyish grin. I wouldn't be shocked by a girl Sheridan, but I'd think 'redstate yuppie' (aka "trendy"). And I can see how people want to jump it onto girls because of the Sheri- part, which is Cheryl / Sharon -like, but it just doesn't make it less mannish, for me personally anyway.